It's a fantasy role-playing game.

DM: You are Tiberius Stormwind, a dragonborn sorcerer . You are the member of the famous group of adventurers. Previously, Pike realizes she has seen this place in a vision, as well as a cavern of blue crystal beyond it. They decide to cross it.
DM: 20? All right. As you focus your Telekinesis, the tentacle begins to shake and is pulled off her body. Kima wrenches herself free. She is not currently grappled.
Player: Can I also go like, (bash) Stop hitting yourself! (all laugh)
DM: The tentacle starts slapping around its body, and it looks confused. It's not enough to do any damage, but it looks unsure as to why it's having a hard time controlling its own limbs.
Player: I give a nod to Kima.
DM: Well done.
Player: That's my turn.
DM: All right, cool. Vax, you're up.
