TL;DR: if the bard reaches 0 HP, the ghostly captain bound in his dagger will try to switch places with him. How could we handle that at the table?
The bard aquired a dagger with the soul of a famous privateer captain in the first session. He was a blood thirsty pirate who hid his soul away to escape the powers of the deep.
The Bard really leaned into this, becoming more blood thirsty, and has bound himself to this spirit by blood, gaining some CC moves. Nine sessions later he is at 4 HP, and we ended last session on a double miss from him and the immolator, deep in a dungeon. There might be a Last Breath coming up soon.
I think the ghostly privateer will seize the opportunity and try to switch places with the bard, trapping him in the dagger. Any bright ideas how to handle this?