Market Price
Raw
$3.77
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Card Details
Cumulative upkeep 
Black creatures can't attack you.
Nonblack creatures can't attack you unless their controller pays 
for each creature they control that's attacking you.
“"How have I angered nature that she would imprison me in a labyrinth of grass?" —Kasib ibn Naji, Letters”
Illustrated by Tony Roberts
Rulings (1)
Feb 1, 2014
Unless some effect explicitly says otherwise, a creature that can't attack you can still attack a planeswalker you control.