Invasion of Ulgrotha // Grandmother Ravi Sengir

(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.

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Flying

Whenever a creature an opponent controls dies, put a +1/+1 counter on Grandmother Ravi Sengir and you gain 1 life.