Petra Sphinx [Legends] Prophecy each opponent puts the top

each opponent puts the top card of their library into their graveyard

destroy all creatures blocking or blocked by it

These days

Set: Vanguard Series Type: Vanguard Rarity: Rare Spells you cast cost {1} less to cast

Petra Sphinx [Legends] Prophecy each opponent puts the topSet: Legends Type: Creature Sphinx 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?