Card Tips:Number C65: King Overfiend
- This card can be summoned by using "Rank-Up-Magic Astral Force" on "Number 13: Cain's Doom", "Number 31: Abel's Doom" or "Ghostrick Dullahan".
- Additionally, you can use "Rank-Up-Magic Astral Force" on this card to summon "Adreus, Keeper of Armageddon", "Number 53: Heart-eartH" or "Number C80: Requiem in Berserk".
- Using either "Xyz Unit" or "Xyz Territory" with this card allows you to take down an enemy monster with up to 2200 ATK.
- If you aren't using "Rank-Up-Magic" cards, you can use this card in a "Crashbug" Deck, as the main trio can easily assemble the necessary three DARK Monsters needed.
- List of Level 3 DARK monsters that can be used as Xyz Material to Summon this card: