Swarm, Swamp Slirghs 2014
CR 3 elemental
Large elemental, neutral
STR17 (+3)
DEX11 (+0)
CON10 (+0)
INT7 (-2)
WIS15 (+2)
CHA3 (-4)
Puddle Jump.
Once on its turn can use 10 ft. of its move to step magically through body of water within reach and emerge from 2nd body of water within 60' of 1st appearing in unoccupied space within 5 ft. of 2nd. If in Huge or larger body of water can teleport to another location within same body of water.
Stench.
Any creature that starts its turn within 5 ft. of swarm: poisoned until start of its next turn. (DC 12 Con negates and creature immune to swarm’s Stench for 24 hrs).
Swarm.
Can occupy another creature’s space and vice versa and swarm can move through any opening large enough for a Tiny elemental. Can’t regain hp or gain temp hp.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details