Mary O'Kill [Unstable] Next Adventure Promos Bioessence Hydra enters the battlefield

Bioessence Hydra enters the battlefield with a +1/+1 counter on it for each loyalty counter on planeswalkers you control

Set: Commander 2020 Type: Instant Rarity: Common Cost: {2}{U} Draw two cards

So-called "old wood" is rare in deforested Ravnica

Set: Ravnica Remastered Type: Legendary Creature — Dragon Wizard Rarity: Rare Cost: {U}{U}{U}{R}{R}{R} This spell can't be countered

Set: Magic 2013 Type: Sorcery Rarity: Uncommon Cost: {4}{U} Exchange control of two target creatures

Mary O'Kill [Unstable] Next Adventure Promos Bioessence Hydra enters the battlefieldSet: Unstable Type: Legendary Creature Human Villain Rarity: Rare Cost: {5}{B R} {1}{B R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)