A second opinion for your fantasy team, not a second job
🧌 BlitzGremlin
Most fantasy advice looks at your players. The gremlin looks at your whole league: every rival's roster, budget and habits, your season simulated 2,000 times every time your league updates, and what each move does for the teams chasing your spot. Each week it tells you who to start, who to claim off and who to trade with, prices every call in playoff odds from your exact , and shows its work. You make every move. Pay once per season.
Why not just use the advice already in your app?
Because it does not know your league. The number next to a player's name and the “trending” list are the same for everyone, and neither one tells you what to do about it. Here is what changes when something reads your league and nothing else.
It reads the whole league, not just your roster
Fantasy football is not you against a projection. It is you against nine or eleven other people chasing the same players, the same budget and the same playoff spots. So every call the gremlin makes is weighed against all of them.
Your season, simulated 2,000 times
Every time your league updates, the gremlin plays out the rest of your season 2,000 times, game by game on your league’s real schedule. Then every call says what it does to your chances of making the playoffs, not just how many points it adds.
What a move does for your rivals
A pickup can be worth as much for who it keeps away from. Claim a player a rival in your race would start, and that counts. Drop one a rival would grab, and it costs you, or the gremlin tells you to shop him in a trade first.
Every manager, profiled
Who spends big, who bids round numbers, who puts in $0 claims, who trades and who has gone quiet. Your bids and trade calls are priced against the people actually in your league.
Graded on what happened
Every week’s calls are checked against the real scores afterwards, so you can see how the gremlin has done in your league before you trust the next one.
The War Room 🗺️
This week's calls tell you what to do. The War Room shows you why: the whole league on one page, in charts you can switch to tables.
- The playoff raceYour odds and every rival’s, with the games that swing them most.
- Head to headThis week’s matchup position by position, against your opponent and the league median.
- Every move, side by sideLineup changes, pickups, trades and blocks, all priced in playoff odds, plus the ones not worth making.
- The managersEach rival’s habits on the wire and at the trade table, and how much budget they have left.
- The schedule aheadWho has it easy and who does not, especially in your playoff weeks.
- Buy low, sell highTouchdown luck read off each player’s workload, so you sell the hot streak and buy the slump.
- Stacks and collisionsWhere your lineup and your opponent’s share an NFL game, and what that does to your week.
- Trade leverageWhich partners are buying, which are selling, and which would get stronger against you.
What goes into a call
Here is some of what the gremlin weighs before it says a word, every week, for your league in particular.
Your league
- Your exact scoring, bonus tiers included
- Your lineup slots, superflex and IDP included
- Two-way players, scored on both sides of the ball
- Defensive players projected from their own snaps, not preseason ranks
- Kickoff times and lineup locks
- Bye weeks and injury tags
- When your waivers actually run
- Your playoff format, the league median game and the trade deadline
Your rivals
- Every team’s waiver budget and how they bid
- Who would start a player you could claim
- What dropping a player hands to someone else
- Who is in your playoff race, and by how much
- Who trades, who hoards, who has gone quiet
- Which partners are buying and which are selling
- This week’s opponent, never a trade partner
The race
- Your playoff odds, from 2,000 simulated seasons
- This week’s win odds
- What every move does to your odds
- Rest-of-season value, not just this week
- The schedule ahead, playoff weeks included
The players
- Touchdown luck, read off workload
- Stacks and collisions with your opponent
- News on your players, and your rivals’ losses
- How many Yahoo leagues roster a player
- Moves that only work together
- Moves that are not worth making, and why
…and more, with something new most weeks.
Tell it what you are playing for: the 🎚️
Nobody else asks this. Some people want the trophy; some people just want to stay off the bottom of the table, because last place has consequences in their league. The same roster gets different advice depending on which one you are, so the gremlin lets you say so, and every call it makes leans that way.
Stay out of last place
Proven volume and safe floors. The gremlin will not lose you the season on one move, even if that means passing on the flashy pickup.
A solid season
Ceiling where the risk is cheap, consensus where it is expensive. The default, and where most people should start.
Win the whole thing
Chase the ceiling: rookies, breakouts, the play the market has not priced yet. Still argued from the data, every time.
It is one dial with five named settings, visible anywhere recommendations appear. Each one reweights against and widens or narrows the candidate pool. It is maths, not vibes: every recommendation is still argued from live data at every setting, and no setting will tell you to start a player who has been ruled out, or to claim one off waivers.
Your week with the gremlin
Tuesday and Wednesday: the waiver wire
Every call names who to add and who to drop, what the move is worth over the season and what it does to your playoff odds. It knows when your league's waivers actually run: a free agent you can grab now gets no bid, and a claim comes with a dollar figure priced from who else would start him, what those teams have left in their , and how they have bid before.
Thursday, then Sunday morning: the lineup
START/SIT calls listed earliest first, each marked with the day it plays. Your lineup grid shows every player's projection, game day, injury tag and flag. A red row is a starter who scores nothing as things stand, and your odds of winning the week are right beside it.
Any day: trades
TRADE calls look for deals that help both rosters, flag a partner who is chasing your playoff spot, point out who is buying and who is selling, and never pitch the team you are about to play. Each one comes with a message you can send.
Claims and trades you already filed
Paste your pending transactions and a claim you already made shows as filed, with your bid next to the gremlin's. A claim it would not have made gets an honest review. Every trade waiting for an answer gets a verdict, accept, decline or close call, with the season and this-week numbers behind it.
Every call has a “Why?”
The numbers behind each whisper, one click away, with every stat explained in plain English. A move that costs more than it gains is marked Hold off, with the reason. Make the move on your platform, then tap Done. Not interested? Mute.
The Deep Read
A separate one-time purchase: one long, written analysis of your roster against the whole league. This week's matchup, the schedule ahead, the waiver wire, every rival's shape and the latest news on your players, from the gremlin's patron at the Gremlin Factor you choose. The patron is our name for the Deep Read's writer: a larger AI model that reads your whole league and the latest news and writes the long version. Each read you order has a page of its own for 30 days.
Trash talk 🔥
Lines for the group chat, built from your league's own standings and rosters: who is undefeated on a soft schedule, who is sitting on their whole budget, who beat you last week. Roasting this week's opponent is free once a week; packs of roasts cover everyone else.
Works with your league
: read live
Paste the league link, pick your team, done. Rosters, lineups, the schedule, waiver budgets and the transaction log read live. Live drafts follow the real picks automatically.
ESPN: paste the link
Rosters and the schedule read in from your league link. A private league needs two cookies from your browser, and the setup page shows you where to find them.
Yahoo: guided setup
Paste your league's address and the setup guide opens the exact Yahoo page to copy from at every step. Or hand one prompt to your AI assistant and let it read the pages for you.
Everyone else: the same guide
The paste guide works for any platform, described in general terms. The gremlin reads what you give it, and the weekly checklist keeps it current.
Your AI assistant, too
Already use ChatGPT, Claude or Cursor? Add BlitzGremlin as a connector, sign in, and your AI can read you the week's calls, hand the gremlin your league's pages and mark moves done. How to connect your AI
Draft night
Live draft assist
drafts poll picks in real time, zero data entry. Every other platform gets , first-class, not a fallback. Lost the tab? The draft is safe; resume it from the Dashboard.
Pick-by-pick recommendations
Top candidates ranked by , and , with the gremlin's one-line, data-backed case for each.
Unlimited practice drafts against -behaviour bots, using your real league settings. As many reps as you want before the real thing.
A note from the person who built this
Hi, I'm Jarin. BlitzGremlin started as a spreadsheet I built for my own draft last season, because the advice inside my league's app kept telling me things that were true for the average league and wrong for mine. It worked well enough that I kept going, and this site is what it turned into.
It is a passion project. One person builds it, around a day job, with no investors and no growth team. I play in one league, on Yahoo, and I use every screen on this site myself each week. When something is confusing, that is a bug, and I would rather hear about it than have you quietly give up. Email me and a person replies.
Season passes are the whole budget. Every one goes into the list below, in roughly that order, and into keeping the data feeds paid for.
— Jarin, [email protected]
Where your pass goes
- ShippedSleeper, read live
League link in, everything read automatically, live drafts followed pick by pick.
- ShippedYahoo and ESPN, by paste
A guided setup that opens the right page and reads what you copy, plus a weekly checklist to keep it current.
- Not yetReading Yahoo leagues directly
No more pasting. Not available yet; until then, the guided paste setup or your own AI assistant keeps a Yahoo league current.
- BetaESPN, read directly
Paste the league link and rosters and the schedule read in. New this season, so tell me what breaks.
- NextBetter data
The gremlin runs on free feeds today. Passes pay for hourly projections and betting lines, which sharpen the start/sit calls.
- LaterTalking back to the gremlin
Ask a follow-up, argue with a call, request your own analysis. Costly to run, so it comes once the basics pay for themselves.
One payment, no subscription
Covers the draft suite, the simulated season and the weekly manager for the whole 2026 season, through your league’s championship week, whichever week that is. No auto-renew; buy again next August if you want it. Every pass funds the next thing on the list above.
Extras, bought separately
- Deep Read: $2.99The standard price, always shown before you buy. Each one you buy is a credit on your account until you order the read; if a read fails on our side, the credit comes back.
- Roast packs: $550 roasts in your first pack, 60 in each one after, and they never expire. Roasting this week's opponent is free once a week.
Deep Reads and roast packs are not refundable. By buying a pass, you agree to the Terms. See how we handle your data in our Privacy Policy. Refunds within 7 days, from Settings.
Questions people ask first
What is BlitzGremlin?
BlitzGremlin is a fantasy football assistant for the casual-to-mid player who wants some extra help managing their team. Every week it reads your league and whispers what to do (who to start, who to pick up, who to trade with) with a plain-English reason and the numbers behind each call. On draft night it drafts with you live, and you can practice in a simulated season first.
How is this different from the advice already in my fantasy app?
The projections and trending lists inside Sleeper, Yahoo and ESPN are the same for every league, and they do not tell you what to do. BlitzGremlin makes the actual call for your team in your league this week, weighed against everyone else in it: who would start the player you are about to drop, who is chasing your playoff spot, what each rival has left to spend and how they bid. Every time your league updates, it simulates the rest of your season 2,000 times on your league’s schedule and prices every move in playoff odds. Every call opens into its evidence, and you can tell it whether you are playing to win the league or to stay out of last place.
Who makes BlitzGremlin?
One person, Jarin, around a day job. It started as a spreadsheet for his own draft and grew from there. There are no investors: season passes are the whole budget, and they fund the next integrations in the order listed on this page. Email him and a person replies.
Does BlitzGremlin make moves on my team?
Never. BlitzGremlin is strictly read-only: it never sets a lineup, files a waiver claim or sends a trade offer. It tells you what it would do and why; you make every move yourself on your own platform, then mark the call done.
Which fantasy platforms does it work with?
Sleeper leagues connect with a link and are read live: rosters, lineups, the schedule, waiver budgets and the transaction log. ESPN leagues read rosters and the schedule from the league link (a private league needs two cookies from your browser). Yahoo leagues use a step-by-step setup guide that opens the exact Yahoo page to copy from at each step, or your AI assistant can read the pages for you. Any other platform (CBS, NFL.com and the rest) uses the same paste guide, described in general terms.
What does it cost?
One season pass covers the whole 2026 season, through your league’s championship week, whichever week that is: the draft suite, the simulated season, the weekly manager and the War Room. It is a single payment, not a subscription: nothing renews. The current price is shown on this page and again at checkout. Two extras are bought separately. A Deep Read is $2.99 at the standard price, always shown before you buy. Trash talk includes a free roast of your opponent every week; more roasts come in packs at $5 each, 50 roasts in your first pack and 60 in every pack after.
What is a Deep Read?
A Deep Read is one long, written analysis of your roster against the whole league — this week’s matchup, the schedule ahead, the waiver wire, every rival’s shape and the latest news on your players — written by the gremlin’s patron at the Gremlin Factor you choose. The patron is our name for the Deep Read’s writer: a larger AI model that reads your whole league and the latest news and writes the long version. Buying a Deep Read ($2.99 at the standard price) puts one credit on your account; ordering a read spends it, and if a read fails on our side the credit comes back. It takes a few minutes, emails you a link when it is ready, and each read you order has its own page for 30 days.
What is the War Room?
The War Room is the whole league on one page: your playoff odds and every rival’s from 2,000 simulated seasons, this week’s matchup position by position, every move on the board priced in playoff odds, each manager’s habits, the schedule ahead, touchdown luck and trade leverage. This week’s calls say what to do; the War Room shows why.
What is trash talk?
Lines to send your league-mates, built from your own league’s standings and rosters, at the heat you choose. Each roast is one rival: four needles and two consolations. Roasting this week’s opponent is free once a week; packs of roasts cover everyone else ($5 a pack: 50 roasts in the first, 60 in each one after), and they never expire.
What is the Gremlin Factor?
A five-step dial for what you are playing for: 1 Scout and 2 Cautious keep you out of last place with safe floors, 3 Balanced is a solid season, 4 Spicy and 5 Full Gremlin chase the ceiling to win the whole thing. It changes what the maths rewards, never the rigour: every call is still argued from current data at every setting, and no setting will tell you to start a player who has been ruled out, or to claim one off waivers.
Can I use BlitzGremlin from my own AI assistant?
Yes. Add BlitzGremlin as a connector in ChatGPT, Claude, Cursor or any AI assistant that supports MCP servers, enter the 6-digit code we email you, and approve it. That code is only for connecting an app; signing in to the site itself is always a link we email you. It can read your leagues and weekly calls, update your league from pages you hand it, and mark moves done; it can never sign in, pay, or change anything on your league’s site. Setup steps for each app are on the AI agents page: blitzgremlin.com/agents.
Can I practice before draft night?
Yes. The draft simulator runs unlimited practice drafts against bots that pick like real managers, using your real league settings. On the night, Sleeper drafts are followed live with zero data entry; every other platform gets manual pick entry with the same pick-by-pick recommendations.
What is the refund policy?
A season pass can be refunded in one click from Settings within 7 days of purchase, no questions required, and the purchase email links straight to it. The money goes straight back to PayPal. Deep Read credits and roast packs are not refundable, since each read and each roast costs money to produce. If a Deep Read fails on our side, its credit comes back by itself.
Do I need a password?
No. Enter your email and BlitzGremlin sends a sign-in link that works for 15 minutes. There is nothing to remember and nothing to leak.
More in the Help page, or email [email protected]. A human replies.