Puppet (傀儡 Kugutsu) is a mechanic associated with Alfou and black Beauty SIGNI.
If a SIGNI is puppeteered (傀儡状態 Kugutsu jōtai), whenever that SIGNI would leave the field, it is put into its owner's trash instead, for example if it would be vanished or returned to the hand. If a puppeteered SIGNI is vanished, it is still treated as being vanished for the purpose of effects.
Alfou and her cards use the puppet mechanic to steal the opponent's SIGNI, putting them from the opponent's trash onto Alfou's field in the puppeteered state; they return the opponent's trash if they would leave the field.
When a stolen SIGNI that has a "when this SIGNI is vanished" ability is vanished, the SIGNI's current controller, not its owner, is the one that benefits from the effect.
