Plasmoid Boss

Large Ooze, Any Alignment

STR
18 (+4)
DEX
12 (+1)
CON
14 (+2)
INT
14 (+2)
WIS
13 (+1)
CHA
15 (+2)
Amorphous.

The plasmoid can squeeze through a space as narrow as 1 inch wide, provided it is wearing and carrying nothing. It has advantage on ability checks it makes to initiate or escape a grapple.

Hold Breath.

The plasmoid can hold its breath for 1 hour.

Actions

Multiattack.

The plasmoid makes three Pseudopod attacks.

Pseudopod.

Melee Weapon Attack: +6 to hit (with advantage if the plasmoid has one or more allies within 10 feet of itself), reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Reactions

Uncanny Dodge.

The plasmoid halves the damage that it takes from an attack that hits it. The plasmoid must be able to see the attacker.

Find this creature in the encounter builder

Plasmoid Boss

Source: Boo's Astral Menagerie, p. 42 - Licenses and attribution