Question: Can you still fight while frozen, and can heal get you out
Also I think you should throw in once per game spells. Like one bring
back from the dead ability, or a Time freeze/ speed up thing where the
person blows a whistle and everyone freezes and only the caster can
move, but cant be closer then 5 feet (from tip of weapon) to an enemy.
Or maybe in conjunction with that a switch places, where he can change
places with a team mate. Or how about mind control. You can't move
while someone on enemy team fights their own people for like 10
seconds. I don't know but there are some ideas. Most other spells like
the ones you have above are pretty much covered already by those same
ones. If I think of anything else i'll post.
Good idea though. I plan to try this out with Swordtag when it starts
up again and I hope t works!