Petra Sphinx [Legends] Human Druid Set: Mirrodin Type: Enchantment Rarity:

Set: Mirrodin Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of each player's upkeep

1 Legendary Creature in every booster

Set: Battlebond Type: Creature — Elf Advisor Rarity: Rare Cost: {2}{G} When Generous Patron enters the battlefield

and it has the same base mechanics

Petra Sphinx [Legends] Human Druid Set: Mirrodin Type: Enchantment Rarity:Set: Legends Type: Creature Sphinx Rarity: Rare Cost: {2}{W}{W}{W} {T}: Target player chooses a card name, then reveals the top card of their library. If that card has the chosen name, that player puts it into their hand. If it doesn't, the player puts it into their graveyard. What walks on four legs in the morning, two legs in the afternoon, and three legs in the evening?