Damping Matrix [Mirrodin] Conflux creatures with power 1 or

creatures with power 1 or less can't block this turn

Set: Magic 2015 Type: Artifact Rarity: Uncommon Cost: {3} Whenever you cast a black spell or a Swamp enters the battlefield under your control

Set: Commander 2014 Type: Creature — Sphinx Rarity: Rare Cost: {5}{U}{U} Flying

Set: Betrayers of Kamigawa Type: Artifact — Equipment Rarity: Uncommon Cost: {1} Equipped creature gets +1/+0

Damping Matrix [Mirrodin] Conflux creatures with power 1 orSet: Mirrodin Type: Artifact Rarity: Rare Cost: {3} Activated abilities of artifacts and creatures can't be activated unless they're mana abilities. The priests tried cursing it. The mages tried dispelling it. In the end, they all obeyed it.