Petra Sphinx [Legends] Kaladesh Prerelease Promos −3: Target creature gets +X/+X

−3: Target creature gets +X/+X or -X/-X until end of turn

(It's an artifact with "{T}

Set: Betrayers of Kamigawa Type: Enchantment Rarity: Rare Cost: {2}{G} Whenever a land enters the battlefield

and not the gales

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {1} As Black Vise enters the battlefield

Petra Sphinx [Legends] Kaladesh Prerelease Promos −3: Target creature gets +X/+XSet: 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?