Mountain Goat [Portal] MST010 you may banish target aura

you may banish target aura token or aura permanent with cost 1 or less controlled by an opponent until Tranquil Passing leaves the arena

You will know the difference when you see it

Set: Starter Commander Decks Type: Creature — Sphinx Rarity: Rare Cost: {5}{U}{U} Flying

Set: Magic 2015 Type: Artifact — Equipment Rarity: Uncommon Cost: {1} Equipped creature can't be blocked

Set: Return to Ravnica Prerelease Promos Type: Creature — Dragon Rarity: Rare Cost: {3}{U}{R} Flying

Mountain Goat [Portal] MST010 you may banish target auraSet: Portal Type: Creature Goat Rarity: Uncommon Cost: {R} Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.) Only the heroic and the mad follow mountain goat trails.