Petra Sphinx [Legends] Judge Gift Cards 2010 Though adept at both magic

Though adept at both magic and swordplay

Set: Limited Edition Alpha Type: Instant Rarity: Rare Cost: {W} Target spell or permanent becomes white

Set: HeartGold & SoulSilver: Base Set Type: Supporter Rarity: Promo

−10: Target player's life total becomes 1

Set: Black & White: Noble Victories Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Petra Sphinx [Legends] Judge Gift Cards 2010 Though adept at both magicSet: 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?