"I'm fine, I'm fine!" Eren says, swatting Fuu away (gently) with the arm that is still in its shoulder socket. The other had managed to worm its way out when he'd landed on it. But if nothing else, Eren was trained well in the art of "attack fast, then get out of the way", and he quickly scrambles out of striking range and gets back into the air, leaving his spear in the snake's body, for now.

The others' attacks seem to be working, and the constant onslaught is sure to catch the snake offguard. With so many targets, and so many sources of pain, it would be difficult for it to target just one of them.

Eren is also willing to let others have the finishing blow; his little spear isn't quite strong enough to pith the snake's skull. So he flutters midair, hangs back, and pops his shoulder back into place with naught but a grimace.

"Hurry up and kill it!! Then I can skin it!"