You don't need Freeze, Break, Drain, or Erase, and Scathe, as well as Fire 2, are mostly situational. Since, yea you can use Scathe as you move, but now we have Triplecast and multiple Flares are more potent than Fire 2.
Wow...look at all of that space and things you don't need because they're mostly useless. Meanwhile, let's nitpick about Fire IV and Blizzard IV not being the same button.