Ghostly Prison
Enchantment
Creatures can't attack you unless their controller pays for each creature they control that's attacking you.
Ai Nanahira
Secret Lair Drop (SLD)
• #424Rulings
Unless some effect explicitly says otherwise, a creature that can't attack you can still attack a planeswalker you control.
(wotc • 2014-02-01)
In the Two-Headed Giant format, you still only have to pay once per creature.
(wotc • 2007-02-01)
Rulings
Unless some effect explicitly says otherwise, a creature that can't attack you can still attack a planeswalker you control.
(wotc • 2014-02-01)
In the Two-Headed Giant format, you still only have to pay once per creature.
(wotc • 2007-02-01)