Beledros Witherbloom (STX 282)

Legendary Creature — Elder Dragon • Mana cost: {5}{B}{G} • Strixhaven: School of Mages • Mythic

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.

Illustrated by Daarken.