Petra Sphinx [Legends] Archangel/X Antibody Set: Sun & Moon: Unbroken

Set: Sun & Moon: Unbroken Bonds Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

its owner loses half their life

discard it

Set: Portal Three Kingdoms Type: Instant Rarity: Uncommon Cost: {W} Cast this spell only during the declare attackers step and only if you've been attacked this step

leading to the chaos of the Three Kingdoms

Petra Sphinx [Legends] Archangel/X Antibody Set: Sun & Moon: UnbrokenSet: 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?