Ancient Mushroom Boss Guide - Two Forms, Two Woods Floors

Of the bosses in the current community tables, the Ancient Mushroom carries the most complete kit list — six named combat skills — and the least explanation of what any of them do. That combination makes it the honest frontier of Elderfield’s data: the numbers are firm, the behavior is not, and the fight plan has to respect both facts.

How big is the Ancient Mushroom, exactly?

The scale jumps out: this is not the Mall’s 150 HP tier. Even the LV1 form out-healths the Weird Fish’ demo-era 400, and the LV2 form sits within reach of the Catacombs end of the ladder. Its magic defense runs ahead of its physical defense at both levels (43/35, then 57/52) — the softest recorded flank is physical, though only modestly.

The two locations tell a progression story the mining guide maps independently: the Old Woods Mines sit deeper in the mine ladder and carry the mithril tier. The LV2 mushroom is part of that deeper layer’s toll — you meet it while mining, not before.

What do the six named skills do?

The wiki records a combat skill list — Attack, Evil Eye, Frenzy Slash, Heavy Slam, Sludge Blast, Soul Drain — and no descriptions for any of them. Two observations are safe from names alone: the kit spans both damage flavors (a Slash and a Blast), and Soul Drain’s name implies some form of sustain, though what it drains and how much is exactly the kind of detail that needs in-game verification before this wiki commits to it.

What the skill list does confirm is variety. A six-skill boss at 0 Agility is not a passive target — it is a slow, rotating threat that will cycle options you cannot yet predict. Against an undocumented kit, the general rules do the work: keep healing rhythm, watch which skills recur, and read the damage types as they land. The combat guide’s defense-split math tells you which of your own options to lean on once you see where the pain actually comes from.

How do you fight a boss with no weakness?

The same way the demo’s stat-check bosses taught: with numbers and discipline. No recorded weakness means no element multiplier — every point of damage comes from gear, levels and sustain. Both forms’ magic defense leads their physical, so physical output has the narrower gap to close; and the jump from 22/26 to 34/38 attack between forms is the cue the LV1 fight hands you. If LV1 strains your healing, the Mines form is not your next fight.

Clearing it logs Mycelicide — 2.5% of players hold it, per the achievements guide — and drops the Living Soul, whose use the community has not yet documented. The Ancient Tree rounds out the woods pair as the other no-weakness ancient; between them, the Old Woods are where element-training ends and stat-training begins.