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Rulings
Once a creature with power 2 or less has blocked a creature, activating Ghirapur Guide's ability won't change or undo that block.
Once a creature with power 3 or greater has blocked the target creature, changing the power of the blocking creature won't change or undo that block.
Once a creature with power 3 or greater has blocked the target creature, changing the power of the blocking creature won't change or undo that block.
Rulings
Once a creature with power 2 or less has blocked a creature, activating Ghirapur Guide's ability won't change or undo that block.
Once a creature with power 3 or greater has blocked the target creature, changing the power of the blocking creature won't change or undo that block.
Once a creature with power 3 or greater has blocked the target creature, changing the power of the blocking creature won't change or undo that block.
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