Aura Shards [Commander 2011] noPrice defending player can't cast spells

defending player can't cast spells this turn

each opponent sacrifices a creature

Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives

and library for any number of cards with the same name as that card and exile them

Set: Mirrodin Type: Legendary Artifact — Equipment Rarity: Rare Cost: {4} Equipped creature gets +5/+5

Aura Shards [Commander 2011] noPrice defending player can't cast spellsSet: Commander 2011 Type: Enchantment Rarity: Uncommon Cost: {1}{G}{W} Whenever a creature enters the battlefield under your control, you may destroy target artifact or enchantment. Gaea forged her soldiers into self wielding weapons that struck down all impurities.