well, since you have -3 skills left over, dont max fire bolt, i would only put 15 skills to it. or maybe 15 skills to meteor instead, then you can maybe add more to hydra or something else. i duobt you will get to level 99 so you should be aware how you calculate things...
You need hydra to kills Necromancers, becuase with their heart of oak and call to arms, your fucking screwed with all the health they are gona have.
Strategy:
>Teleport far away from the Necro and come in as setting Hydras all over the place and throwing your high damage fire balls at him as well. that should kill him for sure.
-Ksr
You hate me becuase im differnt, i hate you becuase your all the same!