So. Imagine this. Spider having a lance cannon, BUT
This cannon charges as you hold fire.
When it charges it gains damage and range.
Starting from LLT range and damage with no charge to double lance damage and cerb range, when fully charged.
The charging curve is slightly exponential to promote charging on hold fire, but it can go pew pew pew machinegun on low charge but with limited range that it gains when charging.
Also as it charges it starts sparking around like the fast riot spider, and as its charged up it has more massive explosion range when killed, like half of big geo range, with a mushroom cloud when killed.
Hp of 3 lances.