If Geoffroy doesn't have healing word his only option will be to jump the wall. I would concentrate on killing the lizard. I'll put sanctuary on him to reduce damage then heal him later. With sanctuary he should be okay unless he decides to continue fighting after that. If he does that it doesn't sound good for him.
Edited: Kyrroeth on 28th Feb, 2017 - 3:30am
Poljen's in range for a Healing Word spell, which Lia has prepped, but it doesn't look like Geoffroy has. Cure Wounds is touch range, so you'd have to jump down there to help him that way.
Alternatively, he's also in range for the moment for Prayer of healing, and you can heal several others along with Cratol doing that. But that's a 2nd level spell, and he might not stay close enough.
Okay, Poljen is going to attack the lizard (And hopefully douse the fire!). If he hits (And I still have that inspire in case I am close) and drops it, he will withdraw, and everyone on the wall can target Cyanwrath. Maybe Lia gives Poljen the Sanctuary… I think this plan will work. Good luck to everyone, especially the impulsive and impetuous barbarian!
I should note that the lizards have moved away from the gate at this time. Poljen will have to basically dive into the converging pack to get at the thing.
It would be safer to at least delay your turn until they charge back your way. You can stay in range of your party's support doing so and won't be taking AOOs rushing back and forth.
Just a thought.
Edited: daishain on 28th Feb, 2017 - 3:49am