Fraudrin of Selflessness boss guide: weaknesses & drops (7DSO)

Boss

Fraudrin of 「Selflessness」

Stats

HP3,473,281

ATK38,187

DEF10,707

Weaknesses

Wind30%

Fire30%

Resistances

All Elements20%

Tip

Why it feels the way it doesSector aura — the Sector 5 Crit Damage buff: Sector 5 carries a stacking +20% Crit Damage buff that reaches +100% over 5 stacks and lasts the whole run. The community ties it to clean dodging, though the exact trigger is not confirmed in the data. His own hits also pile defensive stacks on whoever they connect with — up to +30% Defense (10×) and +20% Crit Resist (5×), a catch-up cushion for players who get hit. (The community 'dodge = +ATK' line is half-right: the Attack bonus comes from the recommended-hero buff, and the +100% Crit Damage is a separate Sector 5 buff.)

Moveset — the real numbers

Its AI decides when it uses what, so there is no fixed rotation to memorize — but every damage %, reach, duration and crowd control below is exact.

Attack	Damage (% of ATK)	Reach	Duration	Control
Dark novaHis hardest hit — a heavy cone blast into rapid follow-ups. Bait it and punish the recovery.	—	4.3m	4.23s	—
Dark eruptionDelayed circle blast that knocks up and staggers; clear the marked ground.	—	6m	4.72s	AirBorne + Stagger
Dark barrageLong line of fast Dark hits — strafe off the lane.	—	10m	4.82s	Stagger
Dark drillSustained multi-hit line; don't stand in front while it channels.	—	2.5m	10.1s	—
Dark rushDark gap-closer that staggers on hit.	—	4m	6.65s	Stagger
Holy rushHoly dash into a big knock-up — note the element flip.	—	4m	4.13s	AirBorne
Holy volleyFive Holy line hits — he is dual-element (Holy + Dark), so don't hard-counter only one.	—	10m	2.42s	—
Holy lance comboHis Holy melee chain up close.	—	2m	2.79s	—

The phase descriptions are the official in-game boss tips; the tactical bullet points are our advice. Every damage value, reach, duration and crowd-control effect in the moveset is the boss's real in-game value. Attack names are descriptive labels.

Timespace Junction — Sector 5

BP 88,329·8:00

★★★≤2:30