Reality Smasher {4}{C}
Creature — Eldrazi
({C} represents colorless mana.)
Trample, haste
Whenever this creature becomes the target of a spell an opponent controls, counter that spell unless its controller discards a card.
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Cards that do something similar expected a card that isn't here?
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Frost Titan 83%
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"Whenever this creature becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}."
Glyph Keeper 81%
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"Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."
Shimmering Glasskite 81%
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"Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."
Jetting Glasskite 81%
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"Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."