Try them out. After you bought an upgrade, put them in one of the slots (Q, E, X, C, etc) and test them.
I prefer the golden boost, golden leaf sword power-up (don't know
) and the chain-thunderbolt. Stuns enemies for a little period. And effective against metal spiders.
Maybe I can explain every skill with a screen.
Heals an amount of life, cost souls, depending on your level
Shoots an ice bolt, freezes enemies, light damage
White Len cameo. Ice crystals crack out of the bottom and freezes enemies around you.
http://www.npshare.de/files/36/3831/shot%202008.01.14%2001.16.28.jpg Don't really know. I call this Goddess mode. But it boosts your speed and your damage. And the glow is useful as a torch. There's a dark version of this earlier in the game, I don't have an idea if you can choose out of good or evil. The evil one looked stylisher though. Leasts as long you have
leaves.
http://www.npshare.de/files/36/7254/shot%202008.01.14%2001.12.35.jpg Glowing golden swords with nice leaf effect, boost damage. (Goddess blade)
http://www.npshare.de/files/36/5993/shot%202008.01.14%2001.14.24.1.jpg Shoots a golden energy ball. High damage. (Goddess beam x_x)
Nearly the strongest spells of the game, damages enemies around you. (Goddess whatever)
http://www.npshare.de/files/36/9703/shot%202007.12.20%2019.43.05.jpg Electrifies your swords, if you have luck, you might be able to stun enemies for a short time, depends on the enemie though.
http://www.npshare.de/files/36/9414/shot%202008.01.14%2001.16.46.jpg Thunder bolt. Light damage, possible stun.
Chain reaction thunder beam. Does mid damage and stuns the enemies.
Fireball. Low damage.
Fireblades, light damage boost.
http://www.npshare.de/files/36/4955/shot%202008.01.14%2001.17.22.jpg Heat wave or something. Mass mid fire damage.
http://www.npshare.de/files/36/9273/shot%202008.01.14%2001.17.50.jpg Your basic gun. Low damage, slow.
Upgraded guns, still low damage. Shoots faster if you have mana.
Even more upgraded guns, low damage. Shoots damn fast with mana, you should try combining this with your goddess mode, damn fast shooting.
Light teleport. Useful to get out of enemy mobs. Teleports into the direction where the character is looking.
Improved teleport, further distance. Teleports into the direction where the camera is looking. (Does this damage? I'm curious because of the sword icon)
Improved teleport, even able to teleport in the air. Teleports into the direction where the camera is looking. (Same here, don't know if this does damage)
Your swords. Mid damage.
Throws all non-flying enemies at the ground, I don't know if this deals damage at all.
Your basic BnB
Throws the opponent in the air and deals several hits, VERY high damage, the most powerful special move in the game.
http://www.npshare.de/files/36/2491/shot%202007.12.19%2015.43.01.jpgI suggest there are more skills, but I haven't played any further.