Ancient Sirehound

Vigilance, Menace If Ancient Sirehound would die, and has less than 3 Phase counters on it, instead tap it and put a Phase counter on it. While it has exactly 1 Phase counter on it, during your upkeep, it deals 1 damage to each of up to three target creatures. While it has exactly 2 Phase counters on it, when it deals combat damage to a creature, put a stun counter on defending creature. While it has exactly 3 Phase counters on it, it has Flying and Deathtouch.