Giwaku

ギワク

Giwaku was a Droid owned by Esmeraude that appeared in episode 80. She possessed the ability to make her target see illusions of loved ones turning against them and verbally abusing them. She attempted to use this power to turn Sailor Mercury against the other Sailor Senshi, but Sailor Mercury instead redirected the attack onto the Droid. This attack froze the antennae Giwaku used to create the illusions, giving Sailor Moon the opportunity to destroy her.