Again, i think Ultima is unlikely because of lore rather then balance. I dont think ive heard any off-limits lore on these spells, so gimme all you can(and the appropriate upgrades too). We can figure out the balance after im casting them.
Break
Comet
Demi/Gravity
Doomsday
Meltdown
Quake
Rasp/Osmose(only useful for pvp)
Scourge
Stop
Tornado
Water
X-Zone