Invasion of Ulgrotha // Grandmother Ravi Sengir (March of the Machine)

Battle Ñ Siege // Legendary Creature Ñ Human Wizard - Invasion of Ulgrotha: (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, it deals 3 damage to any other target and you gain 3 life. // Grandmother Ravi Sengir: Flying
Whenever a creature an opponent controls dies, put a +1/+1 counter on Grandmother Ravi Sengir and you gain 1 life.