vintage japan temple logo. ninja insignia badge . martial art team t-shirt concept on grunge

aikido asia assassin balaclava bike black champion china clan college combat competition crest cyber emblem fight fighting foot footprint game grunge hieroglyph hipser illustration insignia japan japanese karate katana killer knife label league logo martial mascot master mortal ninja ninjas razor red repair retro samurai school sensei shinobu shinto shuriken silhouette skull sport star steel studio sword symbol tabi tanto team temple tournament traditional vintage weapon winner