Full Jing Liu Team Ratio Ruan Mei Jing Liu E1R1 Sparkle Huo Huo Bronya Yanqing Black Swan Bailu Robin AR65

Bronya

Best Support for Jingliu thanks to her massive damage boosts but mostly because of her Speed modification capabilities. Due to Jingliu not consuming many skill points her main cost is almost completely mitigated. Bronya Jingliu can be played in one of two ways.

Wheelchair Bronya: This Bronya build stacks as much Speed as possible (161 minimum) and has Jingliu stack no Speed. Bronya will use her Skill on Jingliu every action to drag her along the action order and grant Bronya's Speed to Jingliu along with all of Bronya's buffs. This build lets Jingliu use her sub-stats, Boots main stat, and set bonus on something other than Speed all while getting all of Bronya's buffs.

Speed Sync Bronya: Harder to setup but considered much stronger. The Speed sync Bronya build aims to sync up both Jingliu and Bronya's Speeds with only 1 Speed difference. Jingliu should be at 135/136 speed with Bronya at 134 speed. With this combo Jingliu will move first using her skill then right after Bronya will move and grant another turn straight to Jingliu allowing her to move again (with Bronya's buffs). This essentially grants Jingliu double the actions as normal assuming you have enough skill points to fuel it (thanks to Jingliu's kit you will have). This pairing allows Jingliu to permanently be in the Transcendent state - when she falls out of it her very next turn she'll use 1 normal skill to be immediately boosted by Bronya and use another normal skill to re-enter it.