Mycomancer Cavern Delve Guide: Location, Boss Strategies, and Trash
This page will cover everything you need to know about the Mycomancer Cavern Delve in the War Within Expansion, including strategies for events, trash, and bosses.
Getting into Mycomancer Cavern
Mycomancer Cavern is a Delve located on the North-East side of Hallowfall, Khaz Algar.
This guide will provide all the specifics you need to complete Mycomancer Cavern across all tiers of difficulties (from Tier 1 to Tier 11). We will cover delve events, optional bosses (rares), as well as end of the dungeon boss and their abilities. If you would like to learn about the rest of the Delves in Season 1, please see our overviews linked below.
Mycomancer Cavern Layout
Events in Mycomancer Cavern
Event #1 — 0/10 Pigs saved
Some of the pigs can transform into Shadow Crazed Hogs and not give any progress towards completing the quest, slay them, and move towards the next one.
Trash Mobs in this Area
- Carnivorous Lasher does only auto-attacks.
- Beware of Fungal Stabber's
Debilitating Venom. - Upon killing Infected Beast, he will channel
Bloated Eruption,
simply out-range its corpse. - Interrupt Fungal Rotspreader's
Rotten Bolt. - Fungal Speartender is the only "mini-boss" (much more HP) in this area,
avoid its
Vine Spear frontal and interrupt 
Battle Roar.
Bogpiper Guide
- Sidestep the
Muck Charge cast and avoid the ground swirlies. - Interrupt
Swamp Bolt. - During the
Sporesong channel, avoid the ground effects at all costs.
Changelog
- 04 Aug. 2025: Reviewed and Updated for Season 3.
- 14 Jun. 2025: No further changes required for 11.1.7 Patch.
- 15 Apr. 2025: No further changes required for 11.1.5 Patch.
- 21 Feb. 2025: Reviewed and Updated for Season 2.
- 03 Aug. 2024: Page added.
This guide has been written by Petko, one of the top Mythic+ players of all time. He has accomplished several Rank 1 World & Europe Team and Solo seasonal rankings, with multiple classes over the span of multiple expansions. You can catch his daily streams on Twitch, and find many of his educational videos on YouTube and TikTok.
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