Wall of Roots
Creature — Plant Wall
Oracle Text
Defender Put a -0/-1 counter on this creature: Add
. Activate only once each turn.
Rules for this card
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A keyword ability that prohibits a creature from attacking. See rule 702.3, “Defender.”
Rulings (1)
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Wizards of the CoastIf you must sacrifice a creature to pay a casting or activation cost that also includes mana, such as that of Bubbling Cauldron's abilities, you may put a -0/-1 counter on Wall of Roots to make its toughness 0 and then sacrifice it to pay that cost.