Brisshell, Doom's Lonely Herald: Mongil: Star Dive's First Eldritch God Assassin

Brisshell, Doom's Lonely Herald: Mongil: Star Dive's First Eldritch God Assassin

Brisshell is an Earth-element Assassin whose whole kit runs on Attention Overload — here is her full skill set and how the buff loop fits together.

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Yato
Yato
Founder/Dev
· 3 min read ·

Brisshell, Doom’s Lonely Herald, joined Mongil: Star Dive with the Version 1.3 update on August 18, 2026. She is an Earth-element, Assassin-class Eldritch God — an extraterrestrial with immense power who hides what she is because she wants to be liked, and who runs away the moment anyone treats her warmly.

Mechanically she is built around one self-buff, Attention Overload, and a creature named Alfred that does most of the hitting.

Skills

Basic Attack — My First Friend Alfred. Brisshell swings Alfred and strikes down, dealing Physical DMG to enemies in front of her. While Attention Overload is active the attack changes: Alfred pursues enemies himself, unleashing a series of bites and slashes that deal Earth DMG instead.

Special Skill — Alfred Rush. Alfred goes out of control and charges forward, biting and tearing through enemies for Earth DMG, and the remaining duration of Attention Overload is extended. Brisshell then slams Alfred into the ground to force him calm and strikes again with Alien Power for more Earth DMG.

Ultimate — Anxiety Burst. Overwhelmed with anxiety, Brisshell loses control of her powers and Alien Power detonates around her, dealing Earth DMG and inflicting Earth Affliction.

Switch Skill — Here I Come! Brisshell swings Alfred in a wide arc for Earth DMG to nearby enemies. Used after her Support Skill it is enhanced instead, sending Alfred into a frenzy — he charges the enemy, navigates around them quickly, and tramples them for Earth DMG.

Passive — Attention Overload. Brisshell gains Attention Overload when she uses her Switch Skill or her Ultimate. Landing attacks with Alien Power inflicts DEF Reduction on enemies.

How the Kit Loops

Attention Overload is both the gate and the payoff. It grants ATK and Suppression DMG Boost, and it is the only thing that converts her Basic Attack from single-target Physical damage into Alfred’s Earth-damage flurry — so her damage profile is different depending on whether the buff is up.

Two skills apply it: the Switch Skill and the Ultimate. The Special Skill does not apply it, it extends it, which makes the natural order Switch or Ultimate first, then Special to hold the window open.

The DEF Reduction rides on Alien Power specifically — the second half of Alfred Rush and the Anxiety Burst detonation — rather than on her regular hits, so the debuff arrives on skill use rather than being maintained by autoattacking.

Where to Get Her

Brisshell is the featured character on the Doom’s Lonely Herald event Recruitment, which opened with the August 18 update. Her Epic Quest, A Visitor from Afar, unlocks from the bottom-left of the Quest screen once Episode 2 is cleared.

Source

Doom’s Lonely Herald, Brisshell Has Arrived!