Burning-Tree Emissary

Create a 4/4 green Beast creature token. Flashback 2GGG (You may cast this card from your graveyard for its flashback cost. Then exile it.)

1RG: This creature gets +1/+1 and gains trample until end of turn.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever this creature attacks, you may return target creature to its owner's hand if its power is less than this creature's power.

(T: Add G.)

Cowards can't block Warriors. R: Target creature becomes a Coward until end of turn. 2R: Target creature becomes a Warrior until end of turn.

(T: Add R.)

Draw a card.

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When you cast this spell, copy it for each spell cast before it this turn.)