Air. If anything at the sea level they had too much of it. It’s allegedly a problem on a mountain, but those don’t tend to have air thinner than the moon.
Earth. Never missed so much being able to stay still. Not having to swim or fly all day and night, even without the need to sleep.
Fire. They don’t need it for the cold, but Phelix’s flames are useful for cooking fish.
Water. With his weather powers, they can get rain water whenever they want. Too bad it's hard to make an iceberg in the open ocean. It would give Temperance some rest from carrying Phelix.
Life. Fish and turtles, they got sick of it pretty fast, but Temperance says that the marine life is common enough to imply a shore nearby, which is just as important.
Metal. No vessel, nothing to maintain or fix besides the clothes on their backs. A compass is useless without knowing anything about this world. Though it was a fitting part of the list in the original fable.
Mind. They definitely lack any idea where the spell landed them, except it’s an ocean in a world that presumably has lands that they can’t currently see. His own and Phelix’s counterparts at least are still back home, so they have that as a resource. They even got that unicorn if they ever need a translator.
Magic. Well, the tricky part. They have the greatest surviving ritualists in the world, and Temperance has an unbounded Empowering gift. In theory, they shouldn’t be more than a few days away from returning home.
But a ritual going haywire is the reason why they are here in the first place. Maybe they shouldn’t trust magic too much.
Specially, because they finally spotted land.