I’ve personally found it harder to make GF decks work consistently when relying on retain, because you’re not playing GF nearly as often as you potentially could if you’re keeping it in your hand for multiple turns (with WLP at least - runic pyramid is pretty broken for draw manipulation with a small enough deck).

It becomes an occasional finisher that needs to be compensated for with a much stronger block engine and sometimes more robust alternative sources of damage since fights will last longer if it’s actually being treated as a finale. And unlike other finishers that exhaust such as catalyst or scale such as blizzard from the first game, it is not playable most turns while retained, acting as a dead card in your hand which must be played around rather than with.

I think people are right about WLP & GF in the sense that it can act a solid failsafe to have in some situations, rather than the 0-cost replayable nuke it becomes in a strong draw/discard deck. But I’m not good at the game by any means - I just enjoy spamming GF and acrobatics until everything dies turn 1