Powers and Abilities

• Demonic Genes: From her demonic father, Rosaline has the ability to absorb people's souls. In addition, Rosaline has enhanced speed, strength, and senses (mostly sight, hearing, and smell). Rosaline, had she not had her soul replaced with one made with dark magic, her natural lifespan still would've been extended. Rosaline also possesses the ability to possess bodies via entering a body through black smoke. Similar to Marsha, Rosaline has the ability to contort her body such as being able to fully rotate her head and twist it back. She also has a high resistance to fire.

• Recreated Soul: As a result of Rosaline's soul being recreated using dark magic, Rosaline is immortal and unaging. In addition, Rosaline can rapidly heal and can't be killed unless the six sentimental objects used to create her soul are destroyed. Because her soul was created through dark magic, Rosaline also has powers similar to her sisters such as the ability to fly and shape-shifting.

Weaknesses

• Demon weaknesses: Because of her demonic father, Rosaline is vulnerable to the typical demon weaknesses such as holy water, salt, and holy weaponry. Rosaline also hates cold environments. It should be noted, however, that Rosaline can still heal from being struck with a holy weapon but the healing process is slower.

• Emotions: Rosaline powers are highly influenced by her emotions, primarily her negative emotions (fear, anger). In addition, the spell used to recreate her soul has the side-effect of amplifying her negative emotions, most evident in her anger.

• Feral Mode: Similar to Marceline, Rosaline can enter a "feral mode" when she becomes ravenous out of hunger. This state will only subside if she consumes a sufficient amount of food or souls.