Rapid Burst build
The aim of the Rapid Burst build is to Burst as often as possible, typically to fit 2x Bursts into a given time window and maximize spike damage. For example, Accessory Quest Rank 5’s boss deals a massive AoE attack after a 5-orb charge, giving players at least 6T to force it into Stun. One strategy would be to Burst twice in that 6T period (+1 for each overdrive extension or reduction effect).
Rapid Burst builds will typically rely on Shingen, as her Relic weapon allows her to recover +30 gauge after each Burst, she has an ability on a 4T CD that recovers a further +20 gauge, and her normal attacks build 25% additional gauge. Shingen’s ATK weapon further buffs her 4T ability from +20 to +35. In a 6T window, players would have 4T + the Burst turn to generate gauge for the 2nd Burst. To use Provisional Forest twice, Shingen would need to build 150 gauge during those 4T. With her ATK weapon, she could generate exactly the 150 needed with no combo attacks (this assumes Provisional Forest is used before the start of the window and Shingen starts with max gauge; getting the timing on this correct without a Burst gauge buffer could be tricky).
An effective Rapid Burst build thus revolves around getting the rest of the team ready to Burst during the window. Jack-o-Lantern provides a Zeal buff that will grant +15. Black Propaganda buys at least +10. For a 6T window, the last kamihime in the lineup only needs 20 additional gauge, while the first kamihime needs 50. To Burst on time, the team will need to combine buffs to team Burst gauge, individual Burst gauge, and combo attacks. Guaranteed combo attack abilities are generally preferred to minimize risk.
Element-specific strategies to close the gap include:
Raiko (Thunder, +30 from Zeal)
Michael Awakened (Light, +40 from Burst and abilities)
Osiris (Dark, +15 from her 5T heal, which can be used twice with Black Propaganda)
Titania (Wind, can buff 2 characters by +30 and +60 to herself, plus ~+30 to a 4th)
Fire Beezlebub (Fire, +50 from Zeal over 5T; use Black Propaganda to leave time for the Burst)
Athirat (Water, +20)
Of the 6 elements, Water lacks the ability to guarantee a 2nd Burst in 6T with its primary Burst buffer alone. This deficit can be alleviated with overdrive extension and a 2nd Jack-o-Lantern, as needed.