Galahad crosses to the other ship with the crew, praying for their general health and well being as he goes.
OOC:
Casting Prayer of Healing again, I'd name specific targets but have little frame of reference by which to choose them. Priority being the worst wounded by his best guess.
Amitiel looks at the gnome carrying foodstuffs in confusion before realizing his mistake. Mentally slapping himself on the forehead "Of course! Mortals need sustenance! How stupid of me!" he hurries after the fliers, but uses his action to once again push the revenant back into the void hugging the ships.
The last of the Revenants flies overboard, into the sea. The ship teeters, you have little time.
OOC:
Amitiel has about 24 seconds and is on foot. Roll an Acrobatics check. DC 15 if you try to grab stuff, DC 10 if you don’t. If you succeed, you can grab some stuff and get to the next ship. If you fail by less than 5, you get on the ship, but fail to grab anything. If you fail by more than 5, you are on the sinking ship when it goes down and are in the water with a bunch of angry Revenants.
Pretty sure that's an Aasimar trait, not a Warlock trait, but whatevs.
The crew and everyone manages to get on to their new ship before the old one sinks. You're even able to grab some food and water, though most of your equipment and whatnot is now at the bottom of the ocean.
Thankfully, your ship is empty. Neither captain has surfaced, though Atemiel did lose concentration there at the end.
You now stand on a ship slightly older, yet a little bigger, than the one you were on a moment ago. The second ship is turning slowly, sailing away from you, though it isn't going very fast. There are only four skeletons left on board, trying to keep it moving.