Omega Infergon: Aniimo's Armored Fire Wall
Russet Highlands, armored Fire typing, and a fight that runs on the break meter — the full strategy.
Omega Infergon is the best-documented Omega fight of Aniimo's launch window: a heavily armored Fire-type boss in the large arena above Russet Highlands. It is the graduation exam for late-game comps — a fight that checks your elements, your BREAK plan and your sustain all at once. This is the full breakdown.
The essentials
| Item | Detail |
|---|---|
| Type | Fire — armored |
| Location | Large arena above Russet Highlands |
| Spawn | Quest-gated Omega — complete the unlock chain first (see Omega guide) |
| Difficulty | Late-game check — expect a real fight, not a field encounter |
The element math
Per the type chart: Fire is weak to Water and Earth (your 1.6x attackers), and hits Grass and Ice hard in return (1.6x against them). That shapes the roster:
- Bring: Water attackers — the water team core is the natural fit — plus Earth coverage
- Bench: Grass and Ice creatures; they eat maximum return damage from an armored Fire boss
- Mind the dual types: if you field dual-element creatures, run the full multiplier math with the dual-element rules — a Water/Ice attacker is a coin-flip against pure Fire pressure
What "armored" means for the fight
Unlike regular encounters, Infergon does not fold to raw aggression. The armor phases mean the break meter is the real health bar:
Pre-fight checklist
Two 1.6x attackers
Water plus Earth coverage, minimum. Single-element comps get walled in phase transitions.
A real Break plan
The meter is the fight. No dedicated Break pressure means no windows means no win.
Sustain and revives
A Healer, or at minimum the Revive talent off cooldown — the revive guide covers the 180-second math.
Arena awareness
Use the space: Infergon's heavy attacks punish hugging, and the arena is sized for repositioning.
Clearing Infergon clean is the working definition of a finished late-game team — if your comp handles it without revive items, you are ready for anything on the current content list, including Holo-Battle star pushing.
FAQ
Where is Omega Infergon in Aniimo?
In the large arena above Russet Highlands. It is a quest-gated Omega boss, so it only appears after you complete its unlock chain — see the Omega bosses guide for how spawn quests work.
What is Omega Infergon weak to?
As a Fire-type, Water and Earth attackers hit it for 1.6x damage. Grass and Ice creatures take heavy return damage and should sit this fight out. Run any dual-element creatures through the full multiplier math before fielding them.
How hard is Omega Infergon?
It is a late-game check: an armored Fire boss that does not fold to raw aggression. The fight runs on break-meter phases — Break pressure to crack the armor, burst damage in the broken windows, and enough sustain to survive the counterattacks between them.
What team should I bring to Omega Infergon?
Two 1.6x attackers (Water plus Earth), a dedicated Break specialist, and real sustain — the water team archetype is the natural fit. No-Healer gambit comps struggle here because armor phases stretch fights past their burst budget.
Where to go next
Omega bosses · Alpha bosses · Water team · Break system · Type chart
Last verified: October 4, 2026 (version 1.1). Mechanics cross-checked against official update notes and in-game menus.