[@Lonewolf685]

Due to her being physically manifested outside of the dimension she was in, she has forfeited the ability to observe where she wishs to observe. So basically shes limited to physical senses like everyone else. (hence why she wants to be in a position where she can find out more about where she is at... e.g a headmistress role)

(Note: Her summons also don't expand her ability to see, she actually has to create a summon with the ability to relay thoughts to her in order to return to her iwth hte information.)

Such Sacrifices have to be made to manifest early after all.

So yes on that note, Illusions kind of work. As well as invisibility spells and things. So playing a trickster actually makes you a solid counter to her. Not that she'll fight you anyway.