On the Art of Gunslashery: Gunslash Guide/Discussion

[Maenara]

I figured that with all the class discussions, the classy classless weapon could use its own thread.

One of the strengths of Gunslash is that since it has no class requirements, it can fit well into several different builds. Currently, it seems, the best builds to insert Gunslash usage into, along with appropriate Gunslashes to use in them, are:
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FI/HU(Limit Breaker/Tank):
•Crafted Sonic Laser, Last Stand potential grants +14% to all damage at <25% HP, which Limit Breaker automatically fulfills. Crafted because its stats are low otherwise.
•Celesta Laser, its unique potential Breath of Life automatically restores 10% HP every five seconds, making it one of the best tanking weapons in the game.
•Ares Buster. As a 13* it's automatically more powerful than any other Gunslash.
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RA/HU:
•Celesta Laser, its unique potential Breath of Life automatically restores 10% HP every five seconds, making it one of the best tanking weapons in the game.
•Ares Buster. As a 13* it's automatically more powerful than any other Gunslash.
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FI/GU(Limit Breaker/Critical/Chain Trigger):
•Crafted Sonic Laser, Last Stand potential grants +14% to all damage at <25% HP, which Limit Breaker automatically fulfills. Crafted because its stats are low otherwise.
•Crafted Roelia Bellow, its potential Chain Finale grants a large +20% to Chain Finishes. Crafted since its stats are low otherwise.
•Rebel Cypher, since its potential gives +13% damage to critical hits. Combined with Fighter's Critical Strike skill, critical hits do 28% more damage.
•Ares Buster. As a 13* it's automatically more powerful than any other Gunslash.
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FI/BO(Limit Breaker/Critical):
•Crafted Sonic Laser, Last Stand potential grants +14% to all damage at <25% HP, which Limit Breaker automatically fulfills. Crafted because its stats are low otherwise.
•Queen Vera, super high T-Atk makes it an adequate weapon to make use of BO's ability to cast techs.
•Rebel Cypher, since its potential gives +13% damage to critical hits. Combined with Fighter's Critical Strike skill, critical hits do 28% more damage.
•Ares Buster. As a 13* it's automatically more powerful than any other Gunslash.