If a face-up "Astraforge" Continuous Spell is on the field: You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can Set 1 "Astraforge" Spell from your Deck. You can only use each effect of "Astraforge Sentinel" once per turn. An "Astraforge" Xyz Monster that has this card as material gains this effect. ● If this card destroys a monster by battle: You can banish 1 card on the field.