Saint Seiya (1986)

Season 1: Episode 107

Shun counters Ikki and wonders why he's attacking him. Ikki suddenly transforms and reveals his true identity, the Mariner General, Lymnades Caça. His ability is to read his enemies' minds and transform into someone they care about in order to kill them. Camus and Seika were also Caça's disguises and defeated Hyoga and Seiya with one blow after deceiving them. Shun attacks Caça for hurting his friends and deceiving their hearts. Caça is captured by the Nebula Chain, but he then transforms into Ikki again, since he knows Shun won't attack him. His theory is proven ...