Disallow
Instant:
Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)
"How easily your flames are quenched."
-Baral, Chief of Compliance
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Pia's Revolution
Enchantment:
Whenever a nontoken artifact is put into your graveyard from the battlefield, return that card to your hand unless target opponent has Pia's Revolution deal 3 damage to him or her.
Pia's passion was directed to the big picture - at making real, lasting change.
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Battle at the Bridge
Sorcery:
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for 1.)
Target creature gets -X/-X until end of turn. You gain X life.
"This is bigger than you. All of you."
-Tezzeret
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Dark Intimations
Sorcery:
Each opponent sacrifices a creature or planeswalker, then discards a card. You return a creature or planeswalker card from your graveyard to your hand, the draw a card.
When you cast a Bolas planeswalker spell, exile Dark Imitations from your graveyard. That planeswalker enters the battlefield with an additional loyalty counter on it.