Thumper has four abilities, although they are missing most of their UI Data. The following is a recreation of what said missing UI Data could have looked like.
Shatter Cannon
20m
1
1s
17s
Thumper focuses a high power acoustic wave to reflect off of a hard surface. Blasting shards of material off in the reflected wave
x0.609
120
Damage
1
+1 Charges
2
+60 Damage
5
-3.75s Cooldown and -3s Cooldown between Charges
Spike Strip
25m
4m
6s
26s
Rolls out a spike strip that damage enemies more the further they move through it.
x0.609
10
Damage Per Second
x0.609
30
Damage Per Meter
50%
Movement Slow
1
+2s Duration
2
+3m Barbed Wire Radius
5
+30 Damage Per Meter
Badger Drone
30m
8s
42s
Sends out a badger drone to harry an enemy and reveal it's position
x0.609
8
Damage Per Second
1
-0.75s Cooldown
2
-0.75s Cooldown
5
-0.75s Cooldown
Vortex
15m
4s
10.5s
Blow enemies away with a high powered blast of air.
1
-0.75s Cooldown
2
-0.75s Cooldown
5
-0.75s Cooldown
Notes
Vortex can push NPCs such as jungle creeps, Guardians, Walkers, and the Patron
Trivia
Players can access Thumper in Hero Sandbox by activating console via F7 and typing "selecthero hero_thumper".