Torchlight III · Railmaster Conductor skill
Shotgonne Car
Shotgonne Car combines a piercing slug active with a periodic area blast, and its source lists Shield Car as a mutually exclusive choice.
How it works
The active skill has an 8-second cooldown. It shoots a single large slug that pierces enemies for 280% Weapon Damage. The passive periodically fires a large blast of fire that hits an area for 70% Weapon Damage. Its Endurance Bonus quickly fires five Slug Shots instead of its normal attack. The passage states that Shotgonne Car is mutually exclusive with Shield Car; it does not describe a restriction involving other train cars.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.