Mox Opal [Kaladesh Inventions]

Mox Opal [Kaladesh Inventions]Set: Kaladesh Inventions Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft {T}: Add one mana of any color. Activate only if you control three or more artifacts. On loan from a private collection, this unique mechanism extracts power from a carefully prepared gemstone.

but you may put it on top of your library instead of into your graveyard

" —Diary of Azusa

bringing the divergent products of alternate pasts into the present

sacrifice Koskun Falls unless you tap an untapped creature you control

untap all lands you control

{9}: Untap Colossus of Sardia

That player sacrifices all permanents in the pile of their choice

"But no one heard the snake's gentle hiss for peace over the elephant's trumpeting of war

Other Scarecrow creatures you control get +1/+1

When Argoth suffers

" —Lim-Dûl

Set: Legends Type: Creature — Horror Rarity: Rare Cost: {3}{B}{B}{B} First strike