mtg innistrad collector booster box Remastered packed with a Retro frame card Innistrad: Crimson Vow Collector Booster

Furnace Gremlin is a potential win condition, if you have enough mana to raise its power high enough before sacrificing to finish your opponent off

You do end up with decks like Sparky Sparky Firebending and Earthbending Warriors

That leads us to the 9-cost Fantastical and Magical action and song, and if you can gather 9 total song cost to activate it, you can draw a card and gain 1 lore for each character that contributed to singing it

HeiHei allows an opposing item to remain exerted, so any item that has to exert itself for its effect would not be able to be used

And, even worse, sometimes they intentionally print cards that are toned down because they are worried about pushing the envelope, like most of the split cards in Ravnica and the Aftermath cards in Amonkhet