Woodland Scout

Rally - Whenever Woodland Scout or another ally enters the battlefield under your control, Woodland Scout explores (reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put this card back or put it into your graveyard)
The real heros are the scouts, who risk their lives to find safe places for the allies, away from the hordes of eldrazi