Are 'trick' spells viable?

[Endoperez]

Nerfix said:
Some of them are more precise though, and that's nice.

But yeah, I don't know if 'nice' is enough. I've seen a Knight charge get foiled by Rage spam, but there could have been better ways to spend the research. Maybe.

Some of them like Suplhur Haze and Freezing Mists have path requirements that aren't very easy to meet, too.

I always thought of Suplhur Haze and Freezing Mists as damage spells. Do you mean that all cloud spells are 'trick' spells as well?
Weird path combination doesn't make a spell a 'trick' spell. Only Tien Chi/Atlantis/Arcos get Acid (Water/Fire) with randoms in most games, Magma (earth/fire) is rare except on Ulm, Nether Darts is the only Astral/Death combination spell with Nether Dart, but this doesn't make these spells any weaker.