Card Set: Mega-Pack 2021

Rarity: Common

Card Type: Spell

Spell Type: Equip

Texto (EN): The equipped monster gains 200 ATK for each monster in your GY. During the End Phase, if this card is in the GY because it was sent there from the field this turn: You can Set this card, but banish it when it leaves the field. You can only use this effect of "Disposable Learner Device" once per turn.