The Motherload

The Motherload was a Leviathan-Level monster that engulfed the body of Tuckerthranx the Red within The Big Bad Base. It caused havoc for the Frockkit Clan and engulfed many of it's members. During the events of Session 001 - Polyhedrooze, a group of adventurers fought and slayed the creature, causing the extinction of the Biomantic Polyhedroozes of Shard of Maphrok.

Figure 1: An illustration drawn by Heliana after hearing the adventurers description

EXTINCT

Genetic Ancestor(s)

• Biomantic Polyhedroozes

Genetic Descendants

• Gelatinooze

Geographic Distribution

• Shard of Maphrok

The Motherload CR: 4

Gargantuan ooze, unaligned

Armor Class: 12 (natural armor)

Hit Points: 58 (9d6 +27)

Speed: 30 ft , climb: 30 ft

STR

16 +3

DEX

6 -2

CON

17 +3

INT

3 -4

WIS

6 -2

CHA

1 -5

Saving Throws: DEX +0, CON +5

Damage Resistances: see Reactive Mutations

Damage Immunities: acid

Condition Immunities: blinded, charmed, deafened, exhaustion, frightened, grappled, prone, restrained

Senses: blindsight 60 ft. (blind beyond this radius), passive Perception 8

Languages: ---

Challenge Rating: 4 ( 1,100 XP)

Proficiency Bonus: +2

Legendary Resistance (1/Day). If the ooze fails a saving throw, it can choose to succeed instead.
Reactive Mutations. Immediately after the ooze takes damage, it gains resistance to that damage type. The ooze can have up to two resistances from this trait. If the ooze has its maximum number of resistances, the oldest resistance is lost when a new one is gained.
Spider Climb. The ooze can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Multiattack. The ooze makes two Pseudopod attacks. It can replace one attack with Engulf.
Engulf. The ooze moves up to its speed. While doing so, it can enter Huge or smaller creatures’ spaces. Whenever the ooze enters a creature’s space, the creature must make a DC 13 Dexterity saving throw.
On a successful save, the creature can choose to be pushed 5 feet back or to the side of the ooze. A creature that chooses not to be pushed suffers the consequences of a failed saving throw.
On a failed save, the ooze enters the creature’s space, and the creature takes 7 (2d6) acid damage and is engulfed. The engulfed creature can’t breathe, is restrained, and takes 14 (4d6) acid damage at the start of each of the ooze’s turns. When the ooze moves, the engulfed creature moves with it.
An engulfed creature can try to escape by taking an action to make a DC 13 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the ooze.
Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 3 (1d6) acid damage and the target suffers one of the following random effects (roll a d6):

1. The target takes 3 (1d6) force damage.
2. The target takes 3 (1d6) bludgeoning damage.
3. The target takes 3 (1d6) piercing damage.
4. The target takes 3 (1d6) slashing damage.
5. The target takes 3 (1d6) cold damage.
6. The target takes 3 (1d6) fire damage.

Legendary Actions

The ooze can take 1 legendary action, choosing the option below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The ooze regains spent legendary actions at the start of its turn.
Attack. The ooze makes one Pseudopod attack.