Selvala, Heart of the Wilds [Modern Horizons 3 Commander]

Set: Modern Horizons 3 Commander Type: Legendary Creature — Elf Scout Rarity: Mythic Cost: {1}{G}{G} Whenever another creature enters the battlefield, its controller may draw a card if its power is greater than each other creature's power.G, T: Add X mana in any combination of colors to your mana pool, where X is the greatest power among creatures you control.