Gideon Blackblade is a mythic Legendary Planeswalker — Gideon card from Magic Online Promos (PRM), collector number 78019.
During 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. +1: Up to one other target creature you control gains your choice of vigilance, lifelink, or indestructible until end of turn. −6: Exile target nonland permanent.