beam weapons a little like the turrets you can pay to operate in the slime farm.
Beam guns have these things in common:
Beam weapons do their damage over time, have penetration (usually) any status applications have only a small chance of activating on targets that have been affected by a beam for a short while.
You can move albiet very slowly while firing a beamer.
types:
elemental (fusion beam (fire), radiation beam (toxic), Cryogenic beam (ice))
shadow (chaos ray) (with possible random status affect)
Piercing (rail gun) (with possible knockback/knockdown as status)
Normal prismatic (laser) (with stun dazzling status sometimes)
Interesting, yet very much OP. You need to balance it a bit more.