William
Skills
N% marks a percentage that can change with skill level (1–30). The sources we read print their numbers at a level they do not state, so we show N% instead of picking one. Each source's own sentence, numbers included and labelled, is under “Where this comes from”.
| Skill | What it does | Where this comes from |
|---|---|---|
| Sword GaleAuto Attack | Unleashes a sword wind, dealing N% ATK Physical DMG to a single target. N%: skill level not stated by the sources | What it does: Single source
Type: Single source Type evidence
|
| Whirlwind BladeUltimate Skill | Swings a sword wind forward, dealing N% ATK Physical DMG to enemies in range. N%: skill level not stated by the sources | What it does: Single source
Type: Single source Type evidence
|
| Twin WindActive Skill | Swiftly unleashes 2 sword winds, striking the target twice, each dealing N% ATK Physical DMG. N%: skill level not stated by the sources | What it does: Single source
Type: Single source Type evidence
|
| UnyieldingSupport Skill | ATK, HP, and DEF +N% N%: skill level not stated by the sources | What it does: Single source
Type: Single source Type evidence
|
William is a SR hero. Rarity is a moment in time: heroes can be upgraded between rarities, so read it with its date.
An unofficial community reference for Last Asylum: Plague, not affiliated with its publisher. Every number carries its source. Last verified 2026-09-07 · patch S4. How we verify → · What we collect →