Decima

Decima is a state of mind "Apocalyptic Knight" users enter when Summoning an "Apocalyptic Knight" in ''Yu-Gi-Oh! Apocalypse and Yu-Gi-Oh! Ω''. In this state, the duelist is in sync with the "Apocalyptic Knight" he/she Summoned, often copying the same posture and, in humanoid-like "Apocalyptic Knights" like "Apocalyptic Knight - Magmacore Soldier", their voices are copied from their original users'.

Trivia

 * Decima was inspired by the state where Ash Ketchum is in sync with his Greninja.