Transmigrated as Raven into overlord
Can become npc or player
Abilities
Telekineses : she wouldn't need to use a incantation to use it and depending on how heavy something is mp consumption would increase
Teleportation: she also wouldn't need a incantation as she normally uses it. There could be a limit as places she has been or seen.
If used as npc ainz could probably summon her with a command as she is a demon/human đ€.
Dark energy/magic: she usually makes things with magic like spheres to attack enemies but she can also shape it into others things.
Temporal stasis: she apperantly can stop time for a bit so that could be a ability of hers that has a lower cooldown than ainzs but at the cost of not lasting long.
Precognition: apparently she can also get premonitions and perceive the future.
Emotion manipulation: she is sensitive to emotions as she can feel others emotions and can manipulate them.
Her weakness could be the same as demiurge's.
Forms not necessary just added cuz shalltear got one.
White raven: she can use hella holy magic. So basically instead of using dark magic she can us holy to deal more damage to certain enemies. She could probably use healing and other stuff. In this form she could care less of people and she could be calm as hell.
A way to beat this form could be to use dark magic or using certain type of weapons like blunt or slashing weapons
Demonic form: in this form she goes beserk and gets a big boost to all her abilities. Her skin turns red and gets multiple eyes. You could add abilities to her eyes so they ain't just for decoration. Like maybe turning things to stone or paralyzing people.
A way to survive this form could be by playing dead while surrounded by fallen allies. For powerful beings they could probably use world items or a weakness for this form could be holy or cocytus.
If you choose to make her a npc you can make a player that made his character look like trigon.