Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

Counter target instant or Aura spell that targets a permanent you control.

You may reveal this card from your opening hand. If you do, when each opponent casts their first spell of the game, counter that spell unless that player pays {1}.

Flying

Whenever an opponent casts a spell, counter it unless that player pays {1}.

Counter target spell.

Counter target noncreature spell. Its controller loses 2 life.

{B}{B}: Counter target green spell.

Choose one --

• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

• Counter target noncreature spell unless its controller pays {3}.

Choose one --

• Counter target artifact or enchantment spell. If a spell is countered this way, exile it instead of putting it into its owner's graveyard.

• Counter target activated or triggered ability.

Counter target spell. If the spell is countered this way, exile it with three time counters on it instead of putting it into its owner's graveyard. If it doesn't have suspend, it gains suspend. (At the beginning of its owner's upkeep, remove a time counter from that card. When the last is removed, the player plays it without paying its mana cost. If it's a creature, it has haste.)

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Counter target spell with mana value 4 or greater.

Counter target instant spell.

This spell can't be countered.

Counter target noncreature spell.

Choose one --

• Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard.

• Destroy target creature with mana value less than or equal to the number of cards in its controller's graveyard.

Flying, trample

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Counter target activated or triggered ability from a noncreature source. (Then exile this card. You may cast the creature later from exile.)

If you control a commander, you may cast this spell without paying its mana cost.

Counter target noncreature spell.

Counter target instant or sorcery spell unless its controller pays {1}.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost.

Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.

Counter target spell.

Flying

{U}, Sacrifice Glen Elendra Archmage: Counter target noncreature spell.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Counter target artifact or enchantment spell. Its controller gains life equal to its mana value.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

{G}{G}: Counter target black spell.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Counter target spell unless its controller pays {3}.

Counter target spell unless its controller pays {1}.

({U/P} can be paid with either {U} or 2 life.)

Counter target spell with mana value 1.

Counter target instant or sorcery spell unless its controller pays {3}.

Counter target instant or sorcery spell.

Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Counter target noncreature spell.

Counter target spell.

At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

Counter target noncreature spell. Your opponents can't cast noncreature spells this turn.

Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.

Kicker {W} (You may pay an additional {W} as you cast this spell.)

If this spell was kicked, create a 1/1 white Soldier creature token.

Counter target spell unless its controller pays {1} for each creature you control.

Choose one --

• Counter target spell if it's blue.

• Destroy target permanent if it's blue.

Choose one --

• Counter target blue spell.

• Destroy target blue permanent.

Counter target activated or triggered ability. (Mana abilities can't be targeted.)

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Create a token that's a copy of target creature you control.

Put X +1/+1 counters on target creature you control. Then counter up to one target spell unless its controller pays mana equal to the greatest power among creatures you control.

Flying

{U}, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control.

Counter target noncreature spell unless its controller pays {2}.

Counter target activated or triggered ability. (Mana abilities can't be targeted.)

Counter target noncreature spell unless its controller pays {1}.

Ferocious -- If you control a creature with power 4 or greater, counter that spell instead.

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Counter target activated ability, triggered ability, or legendary spell.

Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Counter target activated or triggered ability. If a permanent's ability is countered this way, activated abilities of that permanent can't be activated this turn. (Mana abilities can't be targeted.)

Cleave {1}{U}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)

Counter target spell [that wasn't cast from its owner's hand].

As an additional cost to cast this spell, pay 3 life.

Counter target creature spell.