Harpie's Pet Phantasmal Dragon

【Regarding "This card's effects are not applied unless this card has Xyz Material"】

This is not treated as an effect.

【Regarding the effect "This card can attack your opponent directly"】

This is a Continuous Effect that is applied in the Monster Zone.

Regarding the effect "As long as this card remains face-up on the field, your opponent cannot select 'Harpie' monsters as attack targets, nor can they target them with card effects": * This is a Continuous Effect that is applied in the Monster Zone. * "Your opponent cannot select 'Harpie' monsters as attack targets" is an effect applied to the opponent's monsters. (Opponent's monsters that are unaffected by monster effects can attack your "Harpie" monsters.) * The effect that prevents "Harpie" monsters from being targeted by card effects is an effect applied to the opponent player. (Even if an opponent's card is unaffected by monster effects, they cannot select "Harpie" cards that are face-up in the Monster Zone as targets.) * Even while this effect is being applied, the opponent can still target "Harpie" monsters in the Graveyard or that are banished.

【Regarding the "Once per turn, during your End Phase, detach 1 Xyz Material from this card" effect】

This is a Trigger Effect that activates in the Monster Zone.

If this card has Xyz Material, this effect must be activated during your End Phase.