Last updated: X.31.9.0

The **Crystal Worm Mother** is the boss of the [Fungal Cavern](/wiki/fungal-cavern). Instead of being one enemy, it is a massive segmented boss composed of numerous body parts.

Contents

Stats
Combat
Drops
Tips

Stats

Location: Fungal Cavern ####Parts

Crystal Worm Mother Tail HP: 16,000 (+20% [3,200 HP] per player in Dungeon) DEF: 0 EXP: 0 Immune to Stasis Immune to Stun Immune to Paralyze	Crystal Worm Mother Body HP: 7,000 (+20% [1,400 HP] per player in Dungeon) DEF: 40 EXP: 0 Immune to Stasis Immune to Stun Immune to Paralyze	Crystal Worm Mother Head HP: 90,000 (+20% [18,000 HP] per player in dungeon) DEF: 40 EXP: 20,000 Immune to Paralyze Level 20 Quest

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Combat

Attacks

Damage	Condition effects	Speed (tiles/sec)	Range (tiles)	Comments
150		6	30	From Head Pierces Players Passes Cover
150		7	28	From Head Pierces Players Passes Cover
160		8	25.6	From Head Pierces Players Passes Cover Boomerang Faces Direction
150		3	12	From Head Pierces Players Passes Cover Pierces Armor
150		4	16	From Head Pierces Players Passes Cover Pierces Armor
150		5	20	From Head Pierces Players Passes Cover Pierces Armor
150		7	14	From Body Pierces Players Passes Cover
150		5	10	From Body Pierces Players Passes Cover
200	Quiet for 8s	5	10	From Body Pierces Players Passes Cover
80	Quiet for 4s	10	26	From Body Explosion Pierces Players Passes Cover
200		2.4	3.6	From Tail Pierces Players Passes Cover
125		7	14	From Head Radius: 4
150		7	14	From Tail Radius: 3

Behavior

The Crystal Worm Mother is found in a massive circular room that is initially blocked off by unbreakable blocks. In order to access the boss, players must find and break 25 of the [Cavern Crystals](/wiki/cavern-crystal) scattered throughout the Fungal Cavern in order to power up the drill present outside of the boss room. Once the drill is fully powered up, it will drill through the wall - revealing six groups of mushroom enemies in the process - and open the way to the boss. The boss is composed of 1 tail segment, 15 body segments, and 1 head segment that serves as the main target. It initially circles the perimeter of the room until a player enters, upon which it will engage them in combat. It goes through numerous phases based off of remaining HP, and damaging Crystallized Water will flood the edges of the arena as the boss loses health, limiting the space available for movement. In addition, the boss will move with increasing speed as its body is destroyed. Most of the time, its body segments are the only things vulnerable. The vulnerabilities of its other parts depend on how many of its body segments are alive. #####Phase 1 The Crystal Worm Mother slowly follows the nearest player, firing wide spreads of light blue crystal shots. Its body segments rapidly fire smaller crystal bolts at nearby players. Its tail will be leaving behind a trail of slow but extremely damaging purple crystal shots while detonating red explosions on itself - it will do this for the entirety of the fight. During this phase, the majority of the worm is invulnerable. Several of its body segments will visually appear cracked - these its "weak points", which are vulnerable and have slightly reduced HP (only 6,000 base compared to the normal 7,000). Whenever a body segment is destroyed, it will explode into a ring of purple shards that inflict Quiet. When two segments have been destroyed, the weak points become invulnerable while the boss' head becomes vulnerable. #####Phase 2 The boss picks up speed and starts circling the perimeter of the room while the first bit of Crystallized Water floods the edges. The body segments start firing radial bursts of crystal bolts while the head fires single aimed crystal shards. During this phase, the head is invulnerable but every body segment can be harmed. When a body segment is killed, all of the others except its weak points will become invulnerable for about one second and heal to full HP again. Once two more body segments have been downed, the head becomes vulnerable again and the boss will slowly follow players, while the body segments fire multi-drecional crystal bolts. #####Phase 3 The Crystal Worm Mother becomes fully invulnerable and starts circling again. The [Crystal Worm Father](/wiki/crystal-worm-father) spawns in the center of the room and becomes the new target. The Worm Father attacks with a dense, omnidirectional storm of crystal shards, with addition aimed spreads of dark shards fired when below half health. The Worm Mother will fire aimed pairs of shard bullets while circling, but her body segments will not fire while the Worm Father is alive. The boss cannot be harmed until the Worm Father is defeated. Once it has been brought to critical health, the Worm Father retreats into the ground, resuming the fight against the boss proper. After this, the Worm Mother repeats Phase 2, except its head now fires two shard bullets at once. Four segments must be killed to make the head vulnerable again. #####Phase 4 The boss becomes invulnerable and circles the room again while firing 3-round spreads of shard bullets, while the [Crystal Worm Child](/wiki/crystal-worm-child) appears in the center of the platform. The Worm Child is a segmented enemy that follows players, its head firing spreads of light blue shards and its body firing multi-directional crystal bolts. When all of its body segments have been destroyed, the Worm Child's head becomes vulnerable, attacking with a spiralling barrage of yellow shards. Once the Worm Child's head has been destroyed, the Worm Mother will repeat Phase 2 again, but now fires three shard bullets at once. 4 segments must be destroyed before the head becomes vulnerable again. #####Phase 5 The Worm Mother continues circling the platform (which has gotten much smaller since the start of the fight), but now switches out the light blue shards with single yellow shards that return to it after being fired. The remaining three body segments fire with massively increased frequency. Once the last body segments have been destroyed, the boss moves on to the next phase. #####Phase 6 The tail segment becomes vulnerable and the boss slows down. The head starts lobbing Red Bombs at players while firing massive 3-way shotgun bursts of armor-piercing red shards. The tail must be destroyed to advance the fight. #####Phase 7 With only its head segment left, the Crystal Worm Mother becomes vulnerable. It retains the attack pattern from the last phase, but adds in a wide, rapid-fire shotgun of light blue shards in addition to its red shards and bombs. This phase lasts until the Crystal Worm Mother's demise.

Drops

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Tips and Strategies

In general, keep an eye out for sudden phase changes, as they can suddenly kill players very easily if they're not paying attention. Especially dangerous are the phases where it summons the Worm Father/Child, and its penultimate phase where it suddenly starts firing radial shotguns. Piercing weapons are highly effective against this boss, since they can pass through invincible segments like the head and damage the body without any problems. However, if you're a class that relies heavily on their ability, be careful whenever you destroy a body segment, as they will explode into a ring of Quiet shots. Oddly enough, the Crystal Worm Mother's head is **not normally immune to Stun or Stasis**, allowing Knights to shut down its firepower when it's vulnerable and Mystics to put it out of commission and let the group take a breather. In addition, all of its segments are vulnerable to Slow, which is extremely effective at hindering its high mobility. Back to top

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