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Ion Slime

Size
Small
Type
Ooze
Challenge Rating
5
Source
Tome of Beasts 3
Alignment
Unaligned
Armor Class
13
Speeds
20, swim 20
Walking Speed
20
Swimming Speed
20
Strength Score
10
Dexterity Score
17
Constitution Score
18
Intelligence Score
2
Wisdom Score
4
Charisma Score
1
Skill Proficiencies
Perception
Languages Ref
—
Hit Points
112
Condition Immunities
Blinded, Charmed, Deafened, Exhaustion 1, Frightened, Prone
Resistances
Vulnerable to Cold Damage, Resistant to Thunder Damage

Small ooze, unaligned


Armor Class 13

Hit Points 112 (15d6+60)

Speed 20 ft., swim 20 ft.


STR
10 (+0)
DEX
17 (+3)
CON
18 (+4)
INT
2 (−4)
WIS
4 (−3)
CHA
1 (−5)

Skills Perception −3

Damage Vulnerabilities cold

Damage Resistances thunder

Condition Immunities blinded, charmed, deafened, exhaustion, frightened, prone

Senses blindsight 60' (blind beyond), passive Perception 7

Languages —

Challenge 5 (1,800 XP)

Amorphous. Move through space 1ft.+ wide with o squeezing.

Ionic Form. Whenever subjected to lightning it takes no damage and instead regains hp equal to lightning dealt. Its Supercharge then recharges. If it takes cold while supercharged it must roll a d6. On a 1 or 2 it loses the supercharged state.

Ooze Nature. Doesn't require sleep.

Spider Climb. Difficult surfaces even ceilings no ability check.

Actions

Multiattack. Two Pseudopod attacks.

Pseudopod. Melee Weapon Attack: +6 to hit, 5 ft., one target, 6 (1d6+3) bludgeoning damage + 9 (2d8) lightning.

Discharge (Supercharged Only). Sends shock of lightning through its supercharged pseudopod at onecreature it can see within 5 ft. of it ending supercharged state. Target: 27 (6d8) lightning (DC 15 Con half). Three bolts of lightning then leap to as many as three targets each must be within 20' of first target. Target can be creature or object and each can be targeted by only one bolt. Each target: 13 (3d8) lightning (DC 15 Con half).

Bonus Actions

Charged Motion (Supercharged Only). Dash or Dodge action.

Supercharge (Recharge 5-6). Gathers ambient electricity to supercharge itself for 3 rounds. While supercharged slime gains +2 bonus to its AC and it gains an additional action on each of its turns. At end of the third round if the slime hasn't used the Discharge action it suffers feedback taking 18 (4d8) force. Its supercharged state then ends.

Stat block from Tome of Beasts 3 (Kobold Press), Open Game Content used under the Open Game License 1.0a. Tome of Beasts 3. ©2022 Open Design LLC. All rights reserved. It is not Geminaea material. See Legal.