any class can use elements from either sage or elemental weapons except the special ones.(excluding legendary lvl 4 weapons such as excalibur, mysteltainn and ogretooth which i believe are holy, shadow and undead property respectively)
the difference is that wizzy and sage can also use shadow property magic (napalmbeat and soulstrike)
also, paly can use gc and holycross for holy elements likewise with aco/monk/priest which i believe have lots of holy skills.
besides that magnum break has the ability to add fire property damage to the sword for a while. and sins can use poison and earth property.
archers can easily change elements by switching arrows, the downside is that they need to be carrying and equiping with the arrow to be able to shoot them.
and also, supernovi is the one with lowest hp (excluding baby classes).
When someone calls you a lunatic and the first thing that came to mind is a cute, fluffy, white bunny, you know you've played too much RO.