Apocalyptic Knight

Apocalyptic Knight ( Apokariputikku Naito) in Japanese, is an archetypes of monsters that serve as boss monsters for various decks and they were a key part in ''Yu-Gi-Oh! Apocalypse and Yu-Gi-Oh! Ω''. Various users use "Apocalyptic Knight" monsters, and there are, albeit scarce, support for them, such as "Reborn of the Apocalyptic Knights".

Style
"Apocalyptic Knight" monsters serve as signature cards for various Duelists' decks in Apocalypse and Ω, thus they have effects that either benefit the deck directly or indirectly supporting yourself in winning the Duel. "Apocalyptic Knight" monsters started as a symbol of LHK and his different personas and they were all Pendulum Monsters, often with 2500 ATK and 2000 DEF. Later on, more and more duelists obtained their own "Apocalyptic Knight" monster, which they are not a Pendulum Monster, nor they had 2500 ATK and 2000 DEF (mainly).

When an "Apocalyptic Knight" monster is Summoned, the duelist that Summons it enters in a state called Decima, which makes the duelist being in sync with the monster. Also, those duelists share a special bond with their "Apocalyptic Knights", and they often appear as Duel Spirits when not dueling.