Gunbreaker is a high-tempo tank that builds and spends cartridges using its weaponskills and abilities. These cartridges can be spent on the Continuation combo, a flurry of attacks that make the job flow almost like a true DPS. Gunbreakers want to build up their Cartridge Gauge and then unload onto enemies every minute under the effect of its core damaging buff No Mercy. Cartridges are spent on the Gnashing Fang combo roughly every 30 seconds and Burst Strike otherwise, with Continuation used directly afterwards. At max level, they gain the devastating attack Double Down, which requires two cartridges to use. Gunbreaker optimization is structured around not maximizing these strong abilities and using as many cartridges as possible under No Mercy. Defensively, Gunbreaker is a jack of all trades. It boasts the standard suite of tank defensives and can adapt to any situation to assist the party with mitigation and single-target healing over time.