Aetherborn Leviathan

Flying, trample
When Aetherborn Leviathan enters the battlefield, harness 2. (Up to two target creatures you control gain flying for as long as Aetherborn Leviathan is on the battlefield.)
{3}, {t}, Sacrifice Aetherborn Leviathan: Aetherborn Leviathan does 8 damage divided among any number of creatures and/or players.