But if you do think that the "ability" part is good, give me 2 likely scenarios that aren't rare and would be a good use of the ability cuz the ability is so that you get into late game where you confirm the win for Town as the role is built for late game win confirmation
Several evils are being outed and are likely to be lynched: Therefore, you can repeatedly 'attack' one of the suspects, making them a lot more pressured and unable to tell when they actually get attacked. You can pretend to be a Vigi and be bait for an LO, and you can pretend to be a Transporter.
Discourage Janitors and limited-charge evils by pretending like there is a witch and "controlling" them.
Looked at a few of your reviews, Abductor most recently. Juggernaut does not gain Powerful defense whatsoever, the max they gain is Basic defense. The last ability they can gain is an Unstoppable attack.
1st kill: attack each night
2nd kill: Basic defense
3rd kill: Rampage (they do not gain roleblock immunity)
4th kill: Unstoppable attack