The GMs have healing glyphs, but you can\'t buy them.
Weakness can deal a lot of damage if you\'re high in dark way, but it\'s over a very long period of time. I like it because in a duel, you can cast it on your attacker -- you will die, but if the spell is successful, your murderer will suffer a slow but eventual death as well.
Arrow has a much larger range than fireburst, but it doesn\'t deal as much damage per hit. It\'s much faster however. Arrow and Fire are about equally powerful in my opinion.