Acid Suit

The Acid suit is a long ranged DOT suit with utility abilities.

Acid
Acid is a passive skill that applies a long lasting DOT on every shot. It does not stack or slow, but it does provide a very large amount of damage over its duration.

Vapour Cloud
Vapour cloud is an active skill that silences and disarms a target area for as long as anyone stands inside the cloud. The acid suit is not immune to this.

Goo Puddle
Goo puddle is a long range area denial spell that damages over time.

Strategy
Goo puddle can be used to keep people off of control pads or from using vendors. It can also be cancelled part way through its cast animation and still fire, allowing you to greatly reduce time wasted during a fight.