Mox Opal [Scars of Mirrodin]

Mox Opal [Scars of Mirrodin]Set: Scars of Mirrodin 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.

"When he reached the entrance of the cavern

{T}: Other creatures you control gain trample and get +X/+X until end of turn

Set: Return to Ravnica Type: Instant Rarity: Uncommon Cost: {W}{U} Choose one —

"All we know about the Krosan Forest we have learned from those few who made it out alive

{T}: Add {R}

you may draw two additional cards

put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token

but the watchers quickly renewed their courage

"The best skaabs are more powerful and more beautiful than the sum of their parts

When it bellowed

Set: Explorers of Ixalan Type: Instant Rarity: Rare Cost: {5}{W} Double target player's life total

When Cinder Hellion enters the battlefield