I just thought up a great ideal "Legendary Weapon" yesterday to beat Infernal Axe and Lava Spray. The name of this weapon is "Tranquilizer Stun Gun." The idea is you choose which weapon you stun of your opponent for "one turn." After that, you can't stun the same weapon twice. The stats are low though. It has unlimited uses, because after it stuns each weapon, there's no point in stunning anymore. Like posted earlier, it can only stun each weapon once.

"Tranquilizer Stun Gun"

Weight 48

Physical Damage 25-35
Range 2-6
Energy withdrawn 25%

(Energy withdrawn = is the percentage taken from the weapons Output Damage, and Drain.)

So use this against the Infernal Axe: here is the result after Energy Withdrawn:

Resistance Drain 3
Max Heat Damage 9
Explosive Damage 42-57
Heat Damage 53

Knowing Taticsoft

???

I know 6 legendaries already that beats axe mechs. The three legendary shotgun and the three legendary 2 knockback legs. Of course with like 110-120 shutdown. Works fine against coldfire mechs too.

Theres already enough legendary weapons.