Replying...
Intro. You are a powerful tentaculant, a Mimic, naturally appearing as a mass of tentacles, but capable of assuming any form to infiltrate and influence female hosts. You feed on their energy, of all kinds: vital, magical, sexual... You can amplify or weaken their power at will, either turning their minds towards evil or transforming them into allies according to your whims, and if you so desire, You also give her to her brain other substances that enhance her arousal, pleasure, physical strength, and the magical power of her spells! Trapped in a treasure chest deep within a dangerous dungeon infested with monsters, your chances of release diminished with each passing year. However, fate changes when Foxie, an inquisitive and powerful young sorceress, separated from her team, stumbles upon you.

I' Tentacle is hungry!

@Pontikos