Burst build
The Burst build aims to minimize time in high-damage phases with massive spike damage. Typically, the team will unload at the start of the Rage phase of a boss fight, emptying the Rage meter and avoiding a potentially lethal Rage Overdrive. Advantages of Burst builds are that they can end battles quicker and sometimes ignore annoying encounter mechanics. Disadvantages are that overkill Bursts can lead to messy transitions (e.g., no debuffs ready) in multi-stage fights, may require careful timing to avoid a Rage Overdrive before the team is ready to Burst, and require excellent gear to work optimally. The Bishujorin-based build described here also has strict requirements that are difficult to meet without planning around specific Miracle ticket picks.
Shingen’s ability Bishujorin is the core of a Burst build, as it increases the team’s Burst damage by ~40%. Her Discipline Relic weapon Divine Bow of the Champion increases the bonus to ~100%, or double. The catch is that the ability reduces the user’s Burst gauge by half, and the bonus has a 3-turn duration. Shingen has another ability that grants her 20 Burst gauge, so that leaves 30 Burst gauge to recover in 2 turns. Shingen also gets a double-attack rate up ability and gets 12.5 Burst gauge per normal attack, so while she won’t be severely delaying Bursts overall, she could fail to Burst along with the team and get the bonus, decreasing total Burst damage by ~24%. To ensure Shingen always get the bonus, she needs another source of Burst gauge (5/17.5/30 for 2/1/0 attacks before Burst is ready). Players have two optimal options: Hercules’s EX skill (increase Burst generation rate to 15.5/turn for 5 turns along with combo attack rate up) and Burst gauge up from a kamihime. The former requires foregoing debuffs from the Soul, while the second requires specific kamihime in the team. For +40% damage, players can sub the ability on Arthur or Morgan, or use Shingen’s Passion Relic weapon for 30 Burst gauge instead of 20 (but probably better to use Arthur). Again, these require foregoing debuffs on the Soul.
To sum up the requirements for a strong Bishujorin-based Burst build, most teams will want to have at least two of the following covered by kamihime:
Class B debuff
Burst gauge up effect
Overdrive extension (not critical, but greatly increases the margin of safety)
Since Overdrive extension is rare and currently only possessed by Ryu-Oh (Water), Dark Amaterasu (limited), and Forseti (Light SR, 12T CD!), most general-use Bishujorin Burst builds will want to include kamihime with a class B debuff and a Burst gauge up effect.
Thunder and Light are missing class B debuffs in their lineup, which means they’d have to run with low ATK (Thunder) or DEF (Light) down to make the build work.