William

Updated: 7 October 2026

William (William Stein) — SSR pilot, role Raider (Assault). Sniper/tower, link attacks up to 4.

Talents

Fearless Army rank 0–2

In combat, for each enemy within range, DMG +5%, up to 20%.

Fearless Army rank 3–5 (enhanced)

In combat, for every 1 enemy within range, DMG +5% and Crit Rate +5%, up to 20% each.
When an Arm's HP is above 60%, its DMG Taken -25%.

Build

Skill Sets

Order	Skill	Description
1st priority	Rack Command	AP 1 Enters Rack Mode: Cannot move. Heavy Machine Gun Range +2, Bullets +1. Can continue to attack after racking. Automatically exits Rack Mode when an Arm is destroyed. Retract is available in Rack Mode. After retracting, can continue to move.
2nd priority	Nonstop Gunfire Passive	Link Attack triggers per turn +1. After triggering Link Attack 4 times, gains 1 AP.
3rd priority one of 2	Flanking Firepower Passive	When launching a Link Attack, DMG +15% and Hit Rate +10%.
3rd priority one of 2	or Unleash Active	AP 4 Uses a Heavy Machine Gun to attack a target, consuming all AP to deal 1.5x DMG. For each additional AP consumed, skill damage multiplier +0.15.
4th priority	Rampage Shot Active	AP 3 Uses a Heavy Machine Gun to attack a target, dealing 1.3x DMG.

Neural Drive chips γ1, γ2

Which chip goes in which slot: slot colour and type, the number is the chip level (dashed: leave the slot empty). The level sum unlocks the section’s effects at the shown thresholds: unlocked ones are highlighted, hover for the effect text.

γ116 points → unlocked 6 of 6

red 6Attack
Lv. 6

yellow 6Dodge
Lv. 6

yellow 4Dodge
Lv. 4

1Perfect Position 1
4AP Optimization 3
7Adaptive Warfare 1
10Perfect Position 2
13Perfect Position 3
16Perfect Position 4

γ27 points → unlocked 3 of 6

red 6Attack
Lv. 6

blue 1Critical
Lv. 1

blue Critical
empty

1Destroyer 1
4AP Optimization 4
7Adaptive Warfare 2
10Destroyer 2
13Destroyer 3
16Destroyer 4

Bionics: 2 This many Bionic Superconductors are worth spending on this pilot. It is a rare material that raises the γ1 and γ2 chip point cap through the biocomputer.

More tips

Compatible ST

See “ST & pilot compatibility”.

Neural Drive

Slots: R red, Y yellow, B blue. An effect turns on when the chip levels in the section add up to the min. points.

Section	Slots	Min. points	Effect
α Alpha	red Ryellow Yyellow Y	1	CEC 2 Link Attack's effective times per turn +1.
α Alpha	red Ryellow Yyellow Y	4	Power Innovation 1 AP Regen +1.
α Alpha	red Ryellow Yyellow Y	7	AP Optimization 1 Initial AP +1.
β Beta	red Ryellow Yblue B	1	CEC 3 Link Attack's damage multiplier is increased to 0.3.
β Beta	red Ryellow Yblue B	4	Power Innovation 2 When breaking a part, restore 1 AP after combat, effective up to 1 time per turn.
β Beta	red Ryellow Yblue B	7	AP Optimization 2 AP Cap +1.
γ1 Gamma	red Ryellow Yyellow Y	1	Perfect Position 1 Unlock the Assault Weapon's Ideal Range ability. When in combat with a target at Ideal Range, final DMG +15%.
γ1 Gamma	red Ryellow Yyellow Y	4	AP Optimization 3 AP Cap +1.
γ1 Gamma	red Ryellow Yyellow Y	7	Adaptive Warfare 1 At the end of the action, if an Active Attack was not initiated this turn, an extra 2 tiles can be moved.
γ1 Gamma	red Ryellow Yyellow Y	10	Perfect Position 2 When in combat with a target at Ideal Range, Hit Rate +12%.
γ1 Gamma	red Ryellow Yyellow Y	13	Perfect Position 3 When in combat with a target at Ideal Range, Crit Rate +12%.
γ1 Gamma	red Ryellow Yyellow Y	16	Perfect Position 4 When in combat with a target at Ideal Range, final DMG +30%.
γ2 Gamma	red Rblue Bblue B	1	Destroyer 1 The Fearless Army will also grant a Crit Rate +5% to self, up to 20%.
γ2 Gamma	red Rblue Bblue B	4	AP Optimization 4 AP Cap +1.
γ2 Gamma	red Rblue Bblue B	7	Adaptive Warfare 2 If not moved before an Active Attack, Re-ATK can be triggered, effective up to 1 time per turn. Unable to move before attacking. Effects similar to Re-ATK cannot be re-triggered.
γ2 Gamma	red Rblue Bblue B	10	Destroyer 2 In combat, for every 1 tile the target is farther away, DMG +3%, up to +15%.
γ2 Gamma	red Rblue Bblue B	13	Destroyer 3 For each additional target hit by an AoE skill, DMG +3.5%, up to 17.5%.
γ2 Gamma	red Rblue Bblue B	16	Destroyer 4 The effect of Fearless Army has increased to 7.5% for each enemy, up to 30%.

Biocomputer

#	Skill	Effect
0	CEC 1	In cooperation with allies, use Assault Weapons to launch a Link Attack against the target, dealing 0.2x DMG, effective up to 1 time per turn.
1	Surging Fury	Before attacking, gains Crit Rate UP. Stacks up to 3 times. Lasts for 1 turn.
5	Flanking Firepower	When launching a Link Attack, DMG +15% and Hit Rate +10%.
7	Metal Storm
9	Firepower Matrix	Uses a Heavy Machine Gun to intercept incoming rockets within maximum range, reducing their damage by 30%. Can trigger up to 3 times per turn.
13	Rack
21	Nonstop Gunfire	Link Attack triggers per turn +1. After triggering Link Attack 4 times, gains 1 AP.
31	Unleash
3	Rampage Shot

Signature weapons

Bahamut HeavyMachineGun

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