"Plasma"

Elemental/Shadow Type branches
High Charge time
regular shots similar to alchemers, two shots. They travel faster.
Charged shot is a huge projectile that goes through foes (Similar to the DA and Faust), however it has the knack to also backfire on the user because of it being experimental, and it's kind of risky yet rewarding when used right.
Elemental branch causes shock, Shadow causes... Stun?

"Laser"

Elemental type
Very high charge time, and similar to cutter swords, it isn't benefited from UVs as much.
Regular shots are eight weak shots similar to antigua
Charge shot is a very wide wave of energy (If you have played Marvel vs Capcom, and used Iron man's Proton cannon, you'll get the idea), Movement penalty while charging, has to stand still while firing this shot. Three hits if the foe gets the full taste of the blast.
No status effect.

"Handheld Rocket launcher"

Elemental-Normal type.
somewhat high charge time.
Only charge shots.
The shot is essentially the Rocket puppy's attack, sans homing. Slow projectile, huge hitbox, small blast radius.
Causes burn, good chance.
Good for clearing slow crowds, bad for anything else.

"Handheld sniper"

Normal-Piercing type
somewhat high charge time
Only charged shots
The shot is essentially a long range Magnus shot. Have to stay still while charging [!].

"Handheld shotgun"

Normal type
somewhat high charge time
Only charged shots
Short range and wide shot that knocks enemies almost like the Leviathan.
Stun chance fair.

"Pocket Flamethrower"

Elemental type
regular charge time
shots two regular fireballs, almost like the magma driver, only these don't ricochet
Charged shot is similar to t2 fire attacks, the *5 version gets the t3 upgrade

So those a some ideas that'd i'd like to see. I hope you like em.