Sliver Gravemother (Display Commander) (Foil Etched) [Commander Masters] Snake Wizard Whenever a player casts a

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

Set: Ice Age Type: Artifact Rarity: Uncommon Cost: {0} {T}

Whenever Chaos ensues

The rulebook also includes a fully co-operative variant in which all players work toward the group objective with no personal goals

Sliver Gravemother (Display Commander) (Foil Etched) [Commander Masters] Snake Wizard Whenever a player casts aSet: Commander Masters Type: Legendary Creature Sliver Rarity: Mythic Cost: {W}{U}{B}{R}{G} The legend rule doesn't apply to Slivers you control. Each Sliver creature card in your graveyard has encore {X}, where X is its mana value. Encore {5} ({5}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate