Onakke Oathkeeper 722 (Commander Masters)

Creatures can't attack planeswalkers you control unless their controller pays {1} for each creature they control that's attacking a planeswalker you control. {4}{W}{W}, Exile this card from your graveyard: Return target planeswalker card from your graveyard to the battlefield.

NM - $3.90
LP - $3.10
MP - $2.30
HP - $1.60
DMG - $1.50