Petra Sphinx [Legends] Dack At the beginning of each

At the beginning of each end step

Set: Duel Decks Anthology Type: Legendary Planeswalker — Chandra Rarity: Mythic Cost: {3}{R}{R} +1: Chandra Nalaar deals 1 damage to target player or planeswalker

When Linvala enters the battlefield

Set: Battlebond Prerelease Promos Type: Legendary Planeswalker — Will Rarity: Mythic Cost: {4}{U}{U} +2: Until your next turn

Petra Sphinx [Legends] Dack At the beginning of eachSet: 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?