Gunbreaker Draw and Junction feels unfun to use

[Shirolumi]

I think GNB should just have aurora, nebula and blasting zone in their base kit and junctioning enhances them instead. Also make you able to target own party members and don't lose buff on death.

Tank junction:
Nebula goes from 20% to 40%
Blasting Zone is weaker but gives 1s stun
Aurora is a shield with small aoe radius

Healer junction
Nebula's retaliation effect also heals
Blasting Zone is weaker but functions as SAM's meikyo shisui now.
Aurora increased potency on both heal and dot

Dps junction
Potency on retaliation effect is increased.
Blasting Zone increased potency
Aurora is a dot cast on enemies.

[Raiu]

I don't think GNB needs a crazy amount of changes to become good or at least on par with other tanks.

Junction should add additional bonuses to the Limit Break.

DPS: Limit Break becomes an instant cast with increased potency and instantly apply 10% damage debuff.

Heal: Limit Break channels as usual, but each hit heals a significant amount to yourself and nearby allies. The second part, and the final hit of the Limit Break silences enemies for 1 (or 2) seconds.

Tank: Limit Break channels as usual, but each hit damages and applies 1 second of slow on nearby enemies. The second part, and the final hit of the Limit Break stuns enemies for 3 seconds.