Ok so the abilities say that their available but I see that they are only activated when I have certain Spirits in my party. Take HP boost for example, all of them are available but I only have the boost when I have R and R seal in my party where it unlocks all of them. How can I change my Spirits without losing my abilities?

You dont :ph34r:

thats what i hatei mean i wish there was an ultama spirit that has every ability that way you can have him on the side line wile you have your other 2 fave spirites as your main party SE really firetrucked up this time

There are three types of abilities, stats, support, and spirits. The support and spirit abilities can be active even if no dream eater in your party has them. What I find is best to do is to get as many dream eaters as possible and look for all the purple and red abilities in their ability link and unlock those. Then find a combination of three dream eaters that have all the hp boosts and focuses on one area of attack. I've managed to get all the fire boosts, all the attack boost, and almost all the magic boosts with my dream eaters in my party. I have firaga (Dark forage for Riku) Firaga, Firaga, and 5 curagas for commands. This let me beat the game with a 26 sora and a 24 Riku on proud mode. Also, you know how the game comes with the ar cards? Well, there's an option for a sort of new game + where you keep your dream eaters ( at level 1 ) and can scan the cards again getting all the rare dream eaters. You also keep your trophies.

 

thats what i hatei mean i wish there was an ultama spirit that has every ability that way you can have him on the side line wile you have your other 2 fave spirites as your main party SE really firetrucked up this time

 

Actually, that's good that they did that. They still have the second chance, once more, leaf bracer, and some other abilities that always stay and you actually have to think about which abilities to bring into battle with you.