Prosper, Tome-Bound (Extended Art) [Dungeons & Dragons: Adventures in the Forgotten Realms Commander] BW84 Activate only if there are

Activate only if there are two or more hatchling counters on Triassic Egg

would settle for a feather

Whenever an opponent sacrifices a creature

keep Energy in play

its controller sacrifices a creature or land

Prosper, Tome-Bound (Extended Art) [Dungeons & Dragons: Adventures in the Forgotten Realms Commander] BW84 Activate only if there areSet: Dungeons & Dragons: Adventures in the Forgotten Realms Commander Type: Legendary Creature Tiefling Warlock Rarity: Mythic Cost: {2}{B}{R} Deathtouch Mystic Arcanum At the beginning of your end step, exile the top card of your library. Until the end of your next turn, you may play that card. Pact Boon Whenever you play a card from exile, create a Treasure token.