Normal Attack
La Danse Macabre
Stats:

Shadow
CD: -
Controls two puppets that take turns to attack the enemy, Leuce with sharp claws and Mintha with her armored fists, dealing Shadow DMG equal to 736.9% ATK in total. Launches attack with puppet strings instead when Leuce and Mintha cannot be controlled, dealing Shadow DMG equal to 486.2% ATK in total.
Passive:
Grants 1 Chthonic Mark every 6s when Mod has at least 25 but no more than 75 Divine Grace, up to a maximum of 4 Chthonic Marks. For each Chthonic Mark owned, increases Crit Rate by 3% and Crit DMG by 5%.
Divine Grace: Expends 1 Divine Grace when Leuce lands a hit with a normal attack or a skill, and gains 3 Divine Grace when Mintha lands a hit with a normal attack or a skill. The expenditure/gain of Divine Grace from Leuce and Mintha is not affected by other attributes.
Skill 1
Shadow Dance Twirl
Stats:

Shadow
CD: 9s
Switches around the puppets, and the next time Puppet Show: Prelude or Puppet Show: March is cast, Leuce and Mintha both go into Dance Partner mode. When the Chthonic Mark count is at max, hold down on the Normal Attack button to expend all of the Chthonic Marks, which causes Leuce and Mintha to go into Dance Duo mode.
Dance Duo: Increases the Mod's Crit Rate by 12%, Crit DMG by 36%, and Fixed DMG by 6,000 for 9s; Leuce and Mintha launch a joint attack, dealing Shadow DMG equal to 3743% ATK in total for 5.5s. When in Dance Duo state, skills can not be cast, no Chthonic Marks are granted, and Leuce and Mintha can not gain or expend any Divine Grace.
Casting Shadow Dance Twirl when Dodge is not in CD triggers the Dodge effect against the locked-on enemy. Dodge effect goes into CD after this effect is triggered.
Skill 2
Puppet Show: Prelude
Stats:

Shadow
CD: 6s
Deals Shadow DMG equal to 1684.4% ATK in total when Leuce is the puppet being operated. While the skill is in action, inflicts Darksea on the enemy for 12s. Inflicting Darksea multiple times does not refresh the duration.
Deals Shadow DMG equal to 1684.6% ATK in total when Mintha is the puppet being operated. While the skill is in action, inflicts Deathswamp on the enemy for 8s. Inflicting Deathswamp multiple times does not refresh the duration.
Darksea: Deals Shadow DMG equal to 120% ATK every 2s for 12s.
Deathswamp: Deals Shadow DMG equal to 180% ATK every 2s for 8s.
Dance Partner: Replaces Puppet Show: Prelude with Puppet Show: Waltz, in which Leuce and Mintha launch a joint attack, dealing Shadow DMG equal to 2919.8% ATK in total.
Skill 3
Puppet Show: March
Stats:

Shadow
CD: 6s
Deals Shadow DMG equal to 1871.6% ATK in total when Leuce is the puppet being controlled. Leuce also slightly drags surrounding enemies while the skill is in action.
Deals Shadow DMG equal to 1871.8% ATK in total when Mintha is the puppet being controlled. Mintha also slightly drags surrounding enemies while the skill is in action.
Dance Partner: Replaces Puppet Show: March with Puppet Show: Rondo. Leuce and Mintha launch a joint attack, dealing Shadow DMG equal to 2694.7% ATK in total.
Ultimate Skill
Puppet Show: End
Stats:

Shadow
CD: 20s
Restores Mod's Divine Grace to 50 every 3s for 12s upon Ultimate Skill cast. Increases all team members' Crit Rate by 3%, Crit DMG by 15% for 12s for each Chthonic Mark owned, and deals Shadow DMG equal to 2246% ATK in total.
Grants a 3% Ultimate Skill charge when a Mod or a teammate attack crits. Triggers only once every 2s.
Dodge
Shadow Puppet Dodge
Stats:

Shadow
CD: -
Quickly dodges the enemy's attacks. Extremity Dodge triggers the Dodge effect.
Dodge effect: The attacker is significantly slowed for 4s. Dodge effect can trigger once every 20 seconds.
TODO: add tooltip like ingame