Rope is a must-have for any adventurer...

What's the hurry? You might as well have some fun with your object possession power before trying out the other one. You approach the fighter as she look around the room, probably checking for secret treasures, and you take a look at her inventory.

More standard new character stuff: some healing potions, the fertility idol needed for the haunted mansion quest, ectoplasm, crow feathers and other loot from low level monsters, a rope... that last one catch your attention, there was quite a bit of lenght to the cord it would certainly be interesting to possess.

You're not sure you would be able to defeat the fighter though, she look like she's at or near full HP, and her class specialized in tanking damage. Even attacking her from multiple angles would be risky. But maybe you can surprise her, subduing her before she can react.

A plan forms in your mind and you take possession of the piano, starting to play a complex melody. You had gotten more than enough practice at this after all. The half elf jumped, startled at the sudden sound, but she quickly recovered and went to inspect the piano. While she is distracted, busy examining the self playing instrument, you took possession of the rope. Quietly you slithered out of her inventory and reared up like a snake behind her.

As fast as possible you moved in, tying her wrist together and dragging her forward as the grand piano suddently ram her, making her lose her balance. She falls flat on top of it, and you lose no time knotting the rope to the instrument's feet. She's left helpless, kicking wildly without finding any purchase, her unarmed strikes doing absolutely no damage to the piano.

You still have some lenght to work with and you decide to use it. The cord sneak underneath the piano and catch one of the fighter's leg at the ankle, binding it in place before capturing the other one and tying it as far appart your you can, leaving the warrior bound on top of the grand piano with her legs spread open and her arms tied above her head.

"What the fuck is happening?! Someone help me!"

That could be annoying, you briefly take possession of her dagger and cut some of the rope to make a makeshift gag. She tries to resist and struggle away from it, in vain. Soon she's only able to mumble furiously.