Creatures can't attack planeswalkers you control unless their controller pays 1 for each creature they control that's attacking a planeswalker you control.
4WW, Exile Onakke Oathkeeper from your graveyard: Return target planeswalker card from your graveyard to the battlefield.
![Onakke Oathkeeper (Extended Art) [Commander Masters]](http://www.cosmicgames.com/cdn/shop/files/2340093f-a8b2-4bd7-b7bf-32ddede628b1.png?v=1759556061&width=1445)
