Petra Sphinx [Legends] Khans of Tarkir Prerelease Promos Set: Amonkhet Invocations Type: Sorcery

Set: Amonkhet Invocations Type: Sorcery Mythic Cost: {2}{W}{W} Destroy all creatures

Set: Amonkhet Invocations Type: Instant Mythic Cost: {B} Search your library for a card and put that card into your graveyard

Set: Legions Type: Creature — Sliver Rare Cost: {3}{W} Whenever a Sliver deals damage

Set: Amonkhet Prerelease Promos Type: Enchantment — Aura Curse Mythic Cost: {5}{B}{B} Enchant player At the beginning of enchanted player's upkeep

Petra Sphinx [Legends] Khans of Tarkir Prerelease Promos Set: Amonkhet Invocations Type: SorcerySet: 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?