They can still block, and any abilities that don't have tapping the creature as part of its costs can still be used, but otherwise they're inert for the first turn they're in play
It takes spot 3 in my personal ranking
Though being able to pump out a solid token each turn is good, it's pretty exciting to see an ultimate loyalty ability that can be activated after one turn even if that ability can be underwhelming
To solve this, I used a bit of brute force
Marvel Super Heroes features 128 legendary creatures, the most ever for a set
You may turn this conspiracy face up any time and reveal those names.) Whenever you cast a creature spell with one of the chosen names, you may search your library for a creature card with the other chosen name, reveal it, put it into your hand, then shuffle