Thassas ability triggers on your end step, letting you exile another creature you control and then immediately bringing it back to play
Its resilient, annoying, and everywhere
Pokemon Have Layers Pokemon cards have three distinct layers when viewed from the side: two white layers with a gray or black layer in between , like a backwards Oreo
Too bad you cant do multiples at once
This Magic set wants to capture the feeling of something dreadful being out there, unseen, creeping up on the survivors
The five colours, in addition to characterizing specific terrains and specific fantasy types, would also correspond to the strategies of certain colours from a gameplay mechanic -- the type of ways they would win, the types of counter-abilities they could do, and the flavour of the characters associated with them