Mox Opal [Modern Masters 2015] SM94 Set: Secret Slayers Card type:

Set: Secret Slayers Card type: Effect Monster Rarity: Super Rare Attack: 1800 Defense: 800 You can Tribute this card from your hand or face-up field

Set: Battles of Legend: Relentless Revenge Card type: Field Spell Rarity: Secret Rare All "True Draco" and "True King" monsters on the field gain 300 ATK and DEF

Fusion Material Monsters that are listed on a Fusion Monster Card

Set: Mercadian Masques Type: Creature — Lizard Rarity: Rare Cost: {R}{R}{R} Whenever a source deals damage to Crag Saurian

Mox Opal [Modern Masters 2015] SM94 Set: Secret Slayers Card type:Set: 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.