Grappling Kraken {4}{U}{U}
Creature — Kraken
Landfall — Whenever a land you control enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
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Cards that do something similar expected a card that isn't here?
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Makindi Ox 86%
$0.10#18222
"Whenever a land you control enters, tap target creature an opponent controls."