Sanpei from 'Pokémon XYZ' is such a cool character—definitely gives off ninja vibes! He’s a Froakie trainer who later evolves into Greninja, and his whole aesthetic is steeped in ninja culture. The way he moves, the stealthy attacks, even his outfit screams 'shadow warrior.' But what really seals the deal is his bond with Ash’s Greninja, which unlocks the rare Ash-Greninja form. That transformation sequence feels straight out of a ninja legend, with all the dramatic flair and power-ups you’d expect. It’s like the showrunners took every ninja trope and cranked it up to 11.
Honestly, Sanpei’s arc is one of my favorites because it blends traditional ninja themes with Pokémon battles so seamlessly. The way he mentors Ash’s Froakie and later Greninja adds depth to the whole 'ninja mentor' trope. Plus, his rivalry with the mysterious ninja clan adds this layer of intrigue that feels very 'Naruto'-esque. Whether he’s technically labeled a ninja in the Pokémon world or not, he’s 100% ninja in spirit—and that’s what makes him stand out.