Elemental, Rockslide 2014
CR 8 elemental
Large elemental, neutral
STR22 (+6)
DEX8 (-1)
CON20 (+5)
INT5 (-3)
WIS10 (+0)
CHA5 (-3)
Charge.
If it moves 20'+ straight to foe and hits with Slam attack on same turn target takes an extra 9 (2d8) bludgeoning damage. If the target is a creature it must make DC 16 Str save or be knocked prone. If the elemental used Nimble Separation before making this Slam attack the target has disadvantage on the save.
Elemental Nature.
Doesn’t require air food drink or sleep.
Stone Camouflage.
Advantage on Dex (Stealth) checks made to hide in rocky terrain.
Bonus Actions
Nimble Separation.
Can briefly separate its components parts and take the Dash action. Opportunity attacks vs. it have disadvantage until start of its next turn.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details