r/YGO_Genesys•
FlayR

The Haunted Doomland V2 - An update based on testing & Chaos Origins

Since the last post I've played roughly 200 games online and at my local Genesys nights. Made a ton of changes.

I think deck in Genesys meta is legitimately strong.

https://ygoprodeck.com/deck/the-haunted-doomland-719625

Hypergeometrics are crazy complex - but ran the numbers in 3 different simplified ways and ended up at the same spot. First is simplfied calcs with approximations / assumptions for start overlaps / opponent hand traps (flawed, obvious approximation). Second is through playtesting & my notes from each game, which is flawed in that I've been making tweaks the entire way through which adds bias. Third - I made Claude create a model with a 34 line action priority list, and then had claude fetch every competitive Genesys deck in any format ever published and used those numbers / percentages to adjust the number of engines that resolved.

All three obviously flawed methodologies - but they ended up in the same spot by every metric +/- 5%, so I think they are pretty close to the truth.

I think Zombies are legitimately strong in this format.

Posted Jul 1, 2026, 11:40 PM UTC

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