Ebriel, Prismatic Celestial

Flying, Hexproof, Vigilance
When you cast a spell with 3 or more mana symbols in it's mana cost put a +1/+1 counter on Ebriel
At the beginning of your end step, if you control at least 3 permanents with 3 or more mana symbols in their mana costs gain 5 life and draw a card