all split cards mtg - cards with Split Cards Illusion Reality x 2 Apocalypse

Its ETB can also be considered a deterrent, since removing Karumonix just means that the next time you get it to stick, you get to filter another section of your deck for some rats to keep in your hand

This card has been massively slept on since Edge of Eternities came out

But fear not: There are plenty more

(A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control

This lets you benefit from a temporary effect, or take advantage of ETB and LTB effects

Mysterious Tome This is just such clever design that it had to go on my list, even if its not the most powerful