CXyz Comics Hero Legend Arthur

This card is not treated as a "HERO" monster.

The monster effect "This card cannot be destroyed by battle once per turn" is a Continuous Effect.

"If this card has 'Heroic Champion - Excalibur' as an Xyz Material, it gains the following effect" is not treated as an effect. (While "CXyz Heroic Champion - Excalibur" itself has "Heroic Champion - Excalibur" as an Xyz Material, it gains the effect marked with '●'.)

The monster effect "● When this card destroys an opponent's monster by battle and sends it to the GY: You can detach 1 Xyz Material from this card; banish that destroyed monster, and if you do, inflict damage to your opponent equal to its original ATK" is a Trigger Effect. (This effect does not target. You detach 1 Xyz Material from this card as a cost when activating this effect.)

This is an optional effect that can be activated at the end of the Damage Step when "CXyz Heroic Champion - Excalibur" destroys an opponent's monster by battle and sends it to the GY.

The process of "banish that destroyed monster" and the process of "inflict damage to your opponent equal to its original ATK" are treated as occurring simultaneously.