Petra Sphinx [Legends] Dack Set: Beta Edition Type: Enchantment

Set: Beta Edition Type: Enchantment — Aura Rarity: Common Cost: {R} Enchant creature

sacrifice Vaevictis Asmadi unless you pay {B}{R}{G}

if Clockwork Avian attacked or blocked this combat

−6: Separate all permanents target player controls into two piles

Set: Kaladesh Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell

Petra Sphinx [Legends] Dack Set: Beta Edition Type: EnchantmentSet: 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?