Amzu, Swarm's Hunger [Ravnica: Clue Edition]

Set: Ravnica: Clue Edition Type: Legendary Creature — Insect Shaman Rarity: Rare Cost: {3}{B}{G} Flying, menaceOther Insects you control have menace.Whenever one or more cards leave your graveyard, you may create a 1/1 black and green Insect creature token, then put a number of +1/+1 counters on it equal to the greatest mana value among those cards. Do this only once each turn.