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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 
.
Whenever this creature enters or attacks, tap target permanent. It doesn't untap during its controller's next untap step.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.
