The Mightstone and Weakstone [The Brothers' War: Prerelease Promos] Turtle Hydra put a flying counter on

put a flying counter on each creature that convoked it

Set: Zendikar Rising Type: Creature — Vampire Cleric Rarity: Uncommon Cost: {3}{B}{B} Flying

scrubbing away the refuse—and anything else too slow or too clumsy to get out of their way

Set: Resurgence Booster Card type: Option Rarity: Uncommon Play Cost: 0 [Main] The next time one of your green Digimon digivolves this turn

Then if it has the greatest power among creatures on the battlefield

The Mightstone and Weakstone [The Brothers' War: Prerelease Promos] Turtle Hydra put a flying counter onSet: The Brothers' War: Prerelease Promos Type: Legendary Artifact Powerstone Rarity: Rare Cost: {5} When The Mightstone and Weakstone enters the battlefield, choose one Draw two cards. Target creature gets 5 5 until end of turn. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)