Petra Sphinx [Legends] Core Set 2019 Prerelease Promos Set: Black & White: Base

Set: Black & White: Base Set Type: Energy Rarity: Common

Set: Duelist League Promo Card type: Normal Spell Rarity: Rare Target 2 WATER monsters with 1500 or less ATK in your Graveyard

Set: Visions Type: Enchantment Rarity: Uncommon Cost: {2}{B} You may cast Necromancy as though it had flash

First strike (This creature deals combat damage before creatures without first strike

At the beginning of the upkeep of enchanted creature's controller

Petra Sphinx [Legends] Core Set 2019 Prerelease Promos Set: Black & White: BaseSet: 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?