As long as it's your turn, Gideon Blackblade is a 4/4 Human Soldier creature with indestructible that's still a planeswalker.
Prevent all damage that would be dealt to Gideon Blackblade during your turn.

: Up to one other target creature you control gains your choice of vigilance, lifelink or indestructible until end of turn.

: Exile target nonland permanent.