Zaxara, the Exemplary [Commander 2020]

Set: Commander 2020 Type: Legendary Creature — Nightmare Hydra Rarity: Mythic Cost: {1}{B}{G}{U} Deathtouch{T}: Add two mana of any one color.Whenever you cast a spell with {X} in its mana cost, create a 0/0 green Hydra creature token, then put X +1/+1 counters on it.