Mox Opal [Kaladesh Inventions] Mountain Whenever a player casts a

Whenever a player casts a spell with converted mana cost equal to the number of charge counters on Chalice of the Void

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {4} {1}

If at least one Zombie card is milled this way

Ojutai Dragonspeaker

Set: Promo Finish: Cold Foil Type: Weapon Subtype: Pistol (2H) Rarity: Promo Class: Mechanologist Power: 2 Action - Remove a steam counter from Teklo Plasma Pistol: Attack Action - [1 Resource]: If there are no steam counters on Telko Plasma Pistol

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