Legendary Creature - Elder Dragon | Power/Toughness: 4 / 4 (CMC 7)
At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."
Pay 10 life: Untap all lands you control. Activate only once each turn.
- [STX] Strixhaven: School of Mages #163 (M)