Phaser Blast Assault. Yes, but that's a two-handed heavy weapon that works much like a Support weapon. The Secondary fire Sprays bullets at everything in a cone radius.
Think people. THINK. I know it's really tough to do, especially since i get to see all of the swamped forum threads where 64 people gripe about anything that's placed in-game that can be considered an advantage...
you want to introduce a weapon that makes all others obsolete - of course you will get replies outlining what nonsense you came up with.
lets go over it again:
an aoe stun/knockback grenade that does damage, to multiple targets and is able to fire over cover.
Do you realize that this game has no "cover" system? the only cover is breaking line of sight, your grenade will be able to shoot over (through) walls then? Like the TR rifle, but with, like, damage?
I'd rather say "Oh, they're gonna have to glue you back together-IN HELL!" and complian about how I'm the only Black Scottish Cyclops in STO. XD (I'd probably have to make a Borg for that since they're the only ones w/ the partial eyepiece. XP Or maybe a VISOR human. XD).