Overview
Prune’s buffs are accessed primarily through her Elemental Burst. These buffs come in the form of a teamwide DMG% buff that applies to Normal Attacks, Charged Attacks, Plunging Attacks, Skills and Bursts – notably, it won’t apply to type-less damage like
Nicole’s Burst's Projections. She can also buff the active character’s ATK, but only if they are able to trigger a Swirl. The ATK buff in her Constellation 6 does not have such a requirement, which has a requireent of triggering any Elemental Reaction. This makes her far more effective at buffing Anemo characters.
Elemental Skill
Prune’s Elemental Skill has a 15 second cooldown and will generate 5 Anemo Elemental Particles on-hit alongside some ATK scaling damage. If this hit triggers a Swirl Reaction, Prune gets an Enhanced Skill that will deal damage of the Element that she Swirled – if it was a Pyro Swirl, it will deal Pyro DMG. This second hit – called a Banehunter Oathhammer – won’t generate Elemental Particles and will trigger her A4 buff. She is able to do this through other ways, so this is generally not the best option due to the rotation extension it forces.
Elemental Burst
Prune’s Elemental Burst has a cooldown of 18 seconds and an Energy cost of 70, which is relatively steep considering the makeup of her teams. On cast, it will deal a little bit of damage and summon a “Witchlure Bell”, which will attack enemies around the active character periodically. This effect has a duration of 12 seconds.
When the Witchlure Bell hits an opponent and triggers a Swirl Reaction, Prune will also summon a Banehunter Oathwhammer through her Ascension 1 passive. This is the same as her Enhanced Skill, and will trigger her Ascension 4 buff. Because her Burst hits have to trigger Swirl, Prune requires semi-consistent application of Swirlable Elements (Pyro, Hydro, Electro, Cryo).
Passives & Hexerei Buffs
Prune’s Ascension 4 will give a buff lasting 5 seconds, refreshed on the conditions explained above. Prune will give all teammates DMG Bonus based on her attack. For every point of ATK above 2000, Prune will give a bit of DMG Bonus. The maximum buff Prune can give is 50%, which is reached at 4000 ATK and scales linearly at 0.025% per 1 ATK. Reaching 4000 ATK on her is very difficult and not required, but having above 2000 is required. Aim for at least 3000. Nicole’s teamwide ATK buff makes this much easier.
When the Hexerei: Secret Rite effect is active, so when there are at least 2 Hexerei characters in the team, Prune gains an extra buffing vector: if a Hexerei character in the party (including herself) triggers a Reaction, Prune’s ATK is increased by 60% for 5 seconds. If that Reaction was a Swirl, the ATK of the character that triggered it will be increased by 30%. This means Prune will give herself 90 ATK% on Swirl, and do the same to Venti and Varka.