Mox Opal [Modern Masters 2015] Shapeshifter Rebel but I didn't expect it

but I didn't expect it from the building itself

Set: Sun & Moon: Guardians Rising Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: Welcome to Rathe Edition: Alpha Print Finish: Rainbow Foil Type: Defense Reaction Rarity: Rare Class: Warrior Cost: 1 If Steelblade Shunt defends a weapon attack

Set: Alpha Edition Type: Creature — Nymph Dryad Rarity: Common Cost: {G} Forestwalk (This creature can't be blocked as long as defending player controls a Forest

Set: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {4} Nevinyrral's Disk enters the battlefield tapped

Mox Opal [Modern Masters 2015] Shapeshifter Rebel but I didn't expect itSet: Modern Masters 2015 Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft {T}: Add one mana of any color. Activate only if you control three or more artifacts. The suns of Mirrodin have shone upon perfection only once.