Stendari, Fire Mage

Haste
Fickle (When Stendari, Fire Mage enters the
battlefield, flip a coin. If heads, put a +1/+1
counter on Stendari, Fire Mage. If tails, it gains Prowess.)

It Burns — Whenever you cast an instant or sorcery spell, Stendari, Fire Mage deals 2 damage to target opponent.