Normal Attack
Rend Asunder
Stats:

Physical
CD: -
Brandishes the Wasteland Fiend to launch a series of attacks, dealing Physical DMG equal to 458.9% ATK. Hold down the Normal Attack button at the fifth strike of normal attack to unleash a special normal attack, Explosive Slash, dealing Physical DMG equal to 440.8% ATK in total. Landing a hit in this way will cause an explosion that deals Physical DMG equal to 224.6% ATK each time. Every Pressure Tank Mark active expends 10 Divine Grace and causes 1 additional explosion. Explosive Slash does not interrupt the strike count of the normal attack.
Spinning Slash: Expends all Pressure Tank Marks active and launches a spinning slash attack, dealing Physical DMG equal to 374.3% ATK in total. Each Pressure Tank Mark expended grants 1 stack of Burst-threshold and 15 Divine Grace. Each stack of Burst-threshold increases DMG dealt by the Mod by 10% for 10s. Casting Assault Tactic or Siege Tactic within 5s of casting Spinning Slash also triggers Chainsaw Mode for said skill.
Chainsaw Overdrive Mode: Enhances normal attacks. Does not grant Divine Grace during this mode, and every hit landed with the first five strikes expends 10 Divine Grace, dealing additional Physical DMG equal to 449.2% ATK in total. This mode can last 10s or until Divine Grace runs out.
Passive:
Only 4 Pressure Tank Marks can be owned at a time.
Divine Grace: Grants Divine Grace upon normal attack hits.
Stats:

Physical
CD: 18s
Greatsword Mode: Crushes sideways with the Wasteland Fiend, dealing Physical DMG equal to 1310.1% ATK in total. Gains Super Armor for a short period of time while crushing the enemy. Switches to Chainsaw Mode upon hitting.
Chainsaw Mode: Stabs the enemy with the Wasteland Fiend, dealing Physical DMG equal to 842.2% ATK in total. Upon landing a skill hit, hold down the skill button to attack continuously expending Divine Grace and get 1 Pressure Tank Mark for every 25 Divine Grace expended, increasing DMG dealt by 10% and dealing additional Physical DMG equal to 561.5% ATK in total. Increases Non-DoT skill damage by 10% when in Modified Mode. Switches back to Greatsword Mode after casting.
Divine Grace: When attacked by the enemy in the Super Armor state granted by this skill, blocks enemy damage and grants 100 Divine Grace.
Skill 2
Elimination Tactic
Stats:

Physical
CD: 14s
Brandishes the Wasteland Fiend to slash both horizontally and vertically at the enemy, dealing Physical DMG equal to 935.8% ATK in total. Gains 1 Pressure Tank Mark when the same enemy is hit with both horizontal and vertical slashes. When landing a hit with either the horizontal or vertical slash, hold down to expend Divine Grace and continue slashing at the enemy, with horizontal slashes dealing additional Physical DMG equal to 561.4% ATK in total and vertical slashes dealing additional Physical DMG equal to 561.5% ATK in total. Gains 1 Pressure Tank Mark for every 25 Divine Grace expended.
Stats:

Physical
CD: 14s
Greatsword Mode: Brandishes the Wasteland Fiend to unleash a series of slashes, dealing Physical DMG equal to 935.9% ATK in total. Switches to Chainsaw Mode upon hitting an enemy.
Chainsaw Mode: Inserts the Wasteland Fiend into the ground to emanate shockwaves that deal AoE Physical DMG equal to 842.1% ATK in total. Hold down the skill button to expend Divine Grace to continue the casting. For every 25 Divine Grace expended, gains 1 Pressure Tank Mark, increases DMG dealt by 10%, and deals to the enemy additional Physical DMG equal to 561.4% ATK in total. Increases Non-DoT Skill DMG by 10% when in Modified Mode. Switches back to Greatsword Mode after skill casting.
Divine Grace: Grants Divine Grace when landing a hit in Greatsword Mode.
Ultimate Skill
Final Overclock
Stats:

Physical
CD: 20s
Overloads the Wasteland Fiend, dealing Physical DMG equal to 1123.1% ATK in total. Inflicts Armor Break on enemies hit and reduces their DEF by 25% for 10s. Triggers Chainsaw Overdrive Mode after skill casting and grants Burst-threshold equal to the Pressure Tank Marks limit for 10s.
Gains an 8% Ultimate Skill charge when the Mod or a teammate triggers Extremity Dodge. Effect can trigger once every 2s.
Stats:

Physical
CD: -
Quickly dodges enemy attacks. Dodge may be triggered twice consecutively. Extremity Dodge triggers the Dodge effect. Dodge will not interrupt the strike count of the normal attack. In Assault Tactic and Siege Tactic's Chainsaw Mode, trigger a non-mobile Dodge to interrupt the skill, then follow up with a normal attack within 0.8s to cast Spinning Slash.
Dodge effect: Entering Zero Time slows all enemy movements significantly for 2s and grants 30 Divine Grace. Dodge effect can trigger once every 20 seconds.
TODO: add tooltip like ingame