Defender of the Air

Tide {u}{b} (Put a tide counter on Defender of the Air. Do this only as a sorcery.)
Flood- {u}{u}{b}: Discharge one counter of Tide from Defender of the Air. You deal 3 damage to target flying creature or 2 damage to target non-flying creature for each counter used in this way. This ability does not tap Defender of the Air.