Walking Ballista [Aether Revolt Prerelease Promos] Black Guttering cinders stoke their dying

Guttering cinders stoke their dying flames by snuffing out the lights of others

Set: Stronghold Type: Artifact Rarity: Rare Cost: {0} If Mox Diamond would enter the battlefield

As Stuffy Doll enters the battlefield

Set: Commander 2016 Type: Enchantment Rarity: Rare Cost: {1}{B} Whenever an opponent discards a creature card

Walking Ballista [Aether Revolt Prerelease Promos] Black Guttering cinders stoke their dyingSet: Aether Revolt Prerelease Promos Type: Artifact Creature Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1 +1 counters on it. {4}: Put a +1 +1 counter on Walking Ballista. Remove a +1 +1 counter from Walking Ballista: It deals 1 damage to any target.