the fact steward has only 3 toughness makes it pretty bad as a turn 3 (it will die 99% of the time i believe)
the effect is insane tho; but if you have to play it turn 5+ so the effect is actually worth it it's not that good in an aggro deck :/
idk

The 3 toughness is irrelevant if you play it as a combo

ok

Totems are 1 mana, so casting evolve on a board of totems is 4 chances to get Doomsayer

This happened to an opponent, wastes his whole hand filling his board and then evolves a totem into a doomsayer

Was lulz