|Namesake||Phobos (Greek personification of fear)|
- Fear Actualization: With a spore-like object implanted on a target, usually the back of the neck. Alyssa can trap them into a hallucination solely composed of their deepest and darkest fears, haunting them endlessly to the point that their will to fight has been drained completely, flushed out in an instant by the sight of what makes them shiver down to the very core. These hallucinations can be distorted even more into nightmarish figures intent to assault the recipient in any manner Alyssa is satisfied with. The person who are attacked by the said figures aren't actually killed right away but rather in deep unconsciousness lasting up to hours, days, and even a whole month.
- Manipulation: Through the hallucinations, Alyssa can make them do whatever she wants through her voice in one of the causes of their fear, in a distorted and otherworldly voice. However, this is negated if someone caught inside a hallucination has their hearing blocked, like a pair of headphones playing music at max volume.
- Mental Walker: When the recipient is already knocked out through Red Phobos' fear-creating powers, Alyssa can enter the mind of that recipient completely. While inside, she has full access in seeing all of their thoughts, dreams, and memories. If the person was a Stand user, Alyssa has temporary control of their Stand while navigating the landscape of their subconsciousness, as evident when she borrowed Nirvana while inside Jocelyn's mind after she fell victim to an enemy Stand's ability.