Beledros Witherbloom is a mythic Legendary Creature — Elder Dragon card from Magic: The Gathering (Secrets of Strixhaven Commander, SOC). Current market price: $1.46.
Flying
At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this token dies, you gain 1 life."
Pay 10 life: Untap all lands you control. Activate only once each turn.
