I know it's not the best combo, but right in the deck with it, I'm surprised nobody mentioned Wood Elves. If you've got a level 1 Joraga Treespeaker out, these three cards can make for insanely powerful mana ramp. And right in the same deck, Slate of Ancestry is all the card-drawing you'll need when you empty out your hand with all that mana on like turn four/five.