A second opinion for your fantasy team, not a second job
🧌 BlitzGremlin
Built for the casual-to-mid fantasy football player who wants a little extra help managing their team. The advice built into , Yahoo and ESPN is written for every league at once. The gremlin reads yours. Each week it tells you who to start, who to claim off and who to trade with, argues every call from your exact and rosters, and shows its work. Tell it whether you are playing to win the league or just to stay out of last place. 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.
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 recommend a player who has been ruled out.
Your week with the gremlin
Tuesday and Wednesday: the waiver wire
Every call names who to add and who to drop, and says what the move is worth over the season, not just this week. In leagues that bid, it comes with a dollar figure and a range, priced from what the player is worth to you, 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.
Any day: trades
TRADE calls point at league-mates whose starters share a bye week you can cover from your depth, and never pitch the team you are about to play.
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. Make the move on your platform, then tap Done. Not interested? Mute. Answers stick until the NFL week rolls over.
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. Every read you buy is kept on a page of its own.
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.
Yahoo: guided setup
Paste your league's address and the setup guide opens the exact Yahoo page to copy from at every step, in a new tab. Every failed paste says what went wrong and how to fix it.
ESPN and 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.
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.
- Waiting on YahooYahoo, read directly
No more pasting. Yahoo requires written permission before an outside app may read leagues; the application is in.
- NextESPN, read directly
The same link-and-go setup Sleeper has today.
- 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 through the fantasy championship (Week 17). No auto-renew; buy again next August if you want it. Deep Reads are separate one-time purchases, priced per read and shown before you buy. Every pass funds the next thing on the list above.
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, using your exact scoring settings, your bench, your opponent, your bye weeks and, in bidding leagues, what your league-mates have left to spend. 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. Yahoo leagues use a step-by-step setup guide that opens the exact Yahoo page to copy from at each step and reads what you paste. Any other platform (ESPN, 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 NFL season — the draft suite, the simulated season and the weekly manager. It is a single payment, not a subscription: nothing renews. The current price is shown on this page and again at checkout. A Deep Read is a separate one-time purchase, priced per read and shown before you buy.
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. It takes a few minutes, emails you a link when it lands, and every read you buy is kept on its own page.
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 start a player who has been ruled out.
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 from Settings within 7 days of purchase, with one question asked (what didn’t work). The money goes straight back to PayPal. Deep Reads are not refundable, since each one costs money to produce.
Do I need a password?
No. Enter your email and BlitzGremlin sends a one-time sign-in link that lasts 15 minutes. There is nothing to remember and nothing to leak.
More in the Help page, or email [email protected]. A human replies.