The RPG PvP Rules

[Sodo]

nope
they can use MAGE skills
(bolts, water ball, etc...) as they wish

Earth Spike should count as a bolt, because it's just an earth bolt skill, but you get it as a Wizzy. Waterball should definately be considered a signature move, and only useable once. It is the strongest skill in the game.

If you need it, I can help you figure out the whole mage/wizzard skill thing, I specialize in Wizzys.