Inori, Snowfallen Outcast

Trample, haste
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
At the beginning of your end step, if you control 5 or more creatures, put a +1/+1 counter on Inori.