I couldn't miss the chance to practice my drawing!
Transforms standard single-target physical attacks into the powerful ability Blindside when you strike any enemy at more than 90 degrees from it front.Lightning Returns: Final Fantasy XIII description
Blindside is a Commando passive abilityability that bolsters Attack or Ruin at head of attack queue when non-staggered target is not targeting the user. It does not work on staggered foes. It can be learned by Lightning (Crystarium stage 6), Snow (stage 8), Vanille (stage 7), and Fang (stage 8).
It is learned by Serah (role level 11), Noel (role level 8), Amodar (7), Behemoth (70), Chichu (39), Chocobo (94), Dragoon (1), Dreadnought (39), Flangonzola (67), Frag Leech (12), Garganzola (65), Gilgamesh (11), Goblin (19), Golden Chocobo (29), Lightning (8), Mandrake (79), Miniflan (50), Moblin (19), Narasimha (49), Omega (20), Proto-behemoth (21), Reaver (34), Thermadon (20), Typhon (10), Vodianoi (17), Yaksha (14), and Yeoman (15). It is also infusible to monsters.
A blind side is a term in American and Canadian football for an area protected by a left or right tackle. Blind side is also a term used with similar meanings in rugby league and in rugby union.