Songcrafter Mage [Tarkir: Dragonstorm Prerelease Promos] Angle Nightmare Avatar put a +1/+1 counter on

put a +1/+1 counter on Runaway Steam-Kin

Ziatora's Proving Ground enters the battlefield tapped

Soaring City: Return target artifact

Then if there are fifteen or more artifact cards in your graveyard

there is an additional combat phase after the first

Songcrafter Mage [Tarkir: Dragonstorm Prerelease Promos] Angle Nightmare Avatar put a +1/+1 counter onSet: Tarkir: Dragonstorm Prerelease Promos Type: Creature Human Bard Rarity: Rare Cost: {G}{U}{R} Flash When this creature enters, target instant or sorcery card in your graveyard gains harmonize until end of turn. Its harmonize cost is equal to its mana cost. (You may cast that card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by x, where X is its power. Then exile the spell.)