I do have a fun idea for Rolen. I eventually want him to work with Phoenix to make special Impulse Boots. They gradually store magical energy, and once he needs it, they release the energy with explosive force, which could let him jump high, boost forward fast, or blast people back with a kick.
Also, I did some research into seasickness, and it turns out that it shouldn’t last too terrible long. I can have it last a few weeks since he got it just after wearing himself out with all that energy expenditure, but he should have recovered by the end of the month it will take to get to he destination.