Captain guide, skills and build.

Tri-Tip Dagger

The shotgun fires 8 pellets and each one can cause bleeding.

10% of your hits make the enemy bleed, losing health for a few seconds. Each extra dagger adds 10% chance.

Stacking: Each dagger adds the same: with ten, every hit that counts in full bleeds.

Watch out: It shares its chance with Noxious Thorn (they do not roll separately), and with Shatterspleen only one bleed lands per hit. Attacks with low proc put shorter bleeds.

Shatterspleen

For the same reason, many enemies burst.

Your crits cause bleeding, and enemies that die bleeding explode and hurt the ones around them. Each extra one, a stronger explosion.

Stacking: Each copy adds the same, no cap.

Watch out: It shares bleed with Tri-Tip Dagger. If the first crit kills, there is no explosion.

Shattering Justice

Every pellet shreds armour.

Hit an enemy 5 times and you break its armour, so it takes more damage for 8 s. Each extra one, 8 s more.

Stacking: Each copy adds the same, no cap.

Watch out: Good on almost anyone: lowering armour raises all damage a lot.

Spare Drone Parts

His microbots also protect drones.

Your drones attack faster, fire missiles and get a chain gun. You also get a drone. Each extra one, faster drones.

Stacking: Speed adds the same; drone cooldowns drop less each time.

Watch out: Works on all your mechanical allies, turrets included.

Bandolier

Ammo boxes recharge the Orbital Probe while aiming.

Kills sometimes drop an ammo pack that makes all your skills ready again. Each extra bandolier, more often.

Stacking: Per the game, 18% with one and 10% more per copy.

Watch out: The pack restores one charge, not all (turrets, magazines). It does not reset equipment. Any ally can grab it.