Mox Opal [Modern Masters 2015] Sliver that player puts it into

that player puts it into their hand

In an unusual foray into the humanoid form

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {W}

Set: Alpha Edition Type: Creature — Dwarf Rarity: Uncommon Cost: {2}{R} {T}: Destroy target Wall

" Put target creature card from a graveyard onto the battlefield under your control and attach Necromancy to it

Mox Opal [Modern Masters 2015] Sliver that player puts it intoSet: 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.