Swallowtail

Swallowtail is an Anomaly Hunt encounter in Neverness to Everness. The fight takes place in Hethereau and is part of the game's weekly combat loop. Swallowtail is weak to Anima damage.

Lore and Description

A massive, lumbering butterfly drags a trail of movie ticket stubs, forever yearning for the sky, yet doomed to wander here day after day. The encounter takes place inside a Hethereau anomaly zone where reality bends around the creature's slow procession.

Quick Facts

Strategy and Mechanics

Recommended Team

The team picks below are aligned to the Anima weakness. Pulling any of these into the active rotation is the highest single-stat increase you can apply to Swallowtail's clear time.

General Combat Guidance

Fill the boss's break meter with consistent attacks and reward-heavy defensive inputs. Successful parries and dodges contribute significantly more to the break bar than a hit, and a clean parry also fills the Esper Cycle Meter instantly. Save ultimates and heaviest skills for the stagger window that follows a full break. Swallowtail takes greatly increased damage while staggered, so burst output during this phase largely determines whether the encounter clears quickly. Build the team around the Anima weakness. Characters aligned with Anima will see the largest damage multiplier, and team compositions that can enable elemental reactions on top of that attribute will apply additional pressure to the break bar between stagger windows.

Weakness and Resistances

The table below lists the boss's raw resistance value for each of the six elements. A lower number marks the element the boss is most vulnerable to. For Swallowtail, that element is Anima.

Challenge Level Stats

The table below lists Swallowtail's HP, attack, and defense at each of the encounter's difficulty levels. Higher levels yield better drop rates and progression materials at the cost of a tougher fight.

Drops

Swallowtail drops the following materials when defeated. Higher challenge levels increase the drop rate. Each item links to its own wiki page for details on rarity, usage, and acquisition notes.

Encounter Notes

Swallowtail is one of three Anima-weak Anomaly Hunt targets in the Hethereau cluster. Players short on Anima 5-stars can substitute Mint or any A-rank Anima Esper at lower difficulty tiers without breaking the team's reaction loop.

Related Pages