Sengir, the Dark Baron [Commander Legends]

Set: Commander Legends Type: Legendary Creature — Vampire Noble Rare Cost: {4}{B}{B} Flying Whenever another creature dies, put two +1/+1 counters on Sengir, the Dark Baron. Whenever another player loses the game, you gain life equal to that player's life total as the turn began. Partner (You can have two commanders if both have partner.)