Kieron, the Conqueror

Menace, vigilance, ward {4}
Phoenix Healing — {1}{w}: Kieron gets +0/+4
until end of turn and you gain 4 life.
Deathgrip — {3}{b}: Target creature gets -3/-3
until end of turn. If that creature would die this
way, gain control of it instead.
Great Collapse — {5}{r}{r}: Kieron, the Conqueror
deals 10 damage to each creature.