Kanna's skill description and some effects are exhibited in JMS official site.
If you see it yourself, go this page.
Then click this words following this order.
Therefore, I tried to translate with my poor English. I'm sorry in advance that it is probably hard to read.
-Kanna is a magician. Only female.
-Kanna use new weapons; category: Sensu.
--Sensu's coefficient(a number like this; "one-hand sword: 1.20" "bow: 1.30". I don't know how be called it in GMS) is unknown yet.
-Kanna doesn't have MP, but she has "霊力(Reiryoku)", like a Demon Slayer.
-五行の加護(Gogyo no kago)
Kanna was blessed by Gogyo.
→(We expect that it likes be a kind of "Resistance +%")
-悠遠の霊水(Yu-en no reisui)
Reiryoku of Kanna are recovered infinitely.
→(Natural recovery of Reiryoku??)
Using power of Gogyo, and damages are made to amplify.
→(It may be "Damage +%" skill)
For releasing completely Haku(little fox)'s power, the attacked whole enemies.
→(A wide range attack like Genesis)
Kanna is always with Haku, who is a mystery fox creature, and has a special power. Haku loves Kanna and confeito(a kind of candy).
→(We couldn't guess content of this skill...like a monkey of cannons? or attack like monster-familiar?)