Mindbender Spores 
Creature — Fungus Wall
$1.38 #21945 0.53 29.9 years
Defender (This creature can't attack.)
Flying
Whenever this creature blocks a creature, put four fungus counters on that creature. The creature gains "This creature doesn't untap during your untap step if it has a fungus counter on it" and "At the beginning of your upkeep, remove a fungus counter from this creature."
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"Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."
+1 more matching line
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"Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."
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"Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."
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+1 more matching line
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"Whenever this creature blocks a creature, tap that creature. That creature doesn't untap during its controller's next untap step."
+1 more matching line
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$0.19↓#204600.00↓33.1 years↑
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"Defender"
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"Defender"
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"Whenever this creature blocks, remove an ice counter from it."
+1 more matching line
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"Defender"
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"Defender"