Armityle the Chaos Phantom (Erratum: Armityle the Chaos Phantasm)

Fiend-type / DARK / Level 10 / ATK 0 / DEF 0

"Uria, Lord of Searing Flames" + "Hamon, Lord of Striking Thunder" + "Raviel, Lord of Phantasms"
Must first be Special Summoned (from your Extra Deck) by banishing the above cards you control. Cannot be destroyed by battle. Gains 10,000 ATK during your turn only.

Anime:

"Uria, Lord of Searing Flames" + "Hamon, Lord of Striking Thunder" + "Raviel, Lord of Phantasms"
Must be Special Summoned by "Dimension Fusion Destruction". Cannot be destroyed by battle. Once per turn, if this card is in Attack Position: After this effect resolves, conduct battle with this card and a monster your opponent control, but use 10,000 as this card's ATK for damage calculation. Once per turn: You can switch control of this card until the end of this turn. Once per turn, during the End Phase, if this effect was activated this turn: Banish all other cards you control.