Time Thief Flyback — Ruling

Effetto 1

You cannot activate this card during the Damage Step.
This card's effect that attaches a "Time Thief" card to a "Time Thief" Xyz Monster on your field is the effect applied by activating this card. (This effect targets 1 face-up "Time Thief" Xyz Monster in your Monster Zone.)

This card's effect that attaches a card from your opponent's Graveyard to a "Time Thief" Xyz Monster on your field starts a Chain and activates in the Graveyard. (Banishing this card from your Graveyard is the cost to activate this effect. It cannot be activated during the Damage Step.)
This effect targets 1 face-up "Time Thief" Xyz Monster in your Monster Zone. (You choose a card from your opponent's Graveyard to attach to it when the effect resolves.)