Brown Slime (5e Creature)
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Large ooze, unaligned
Skills Stealth +3
Amorphous. The slime can move through a space as narrow as 1 inch wide without squeezing.
False Appearance. While the slime remains motionless, it is indistinguishable from an ordinary patch of mold or moss.
Fire Absorption. Whenever the slime is subjected to fire damage, it takes no damage and instead regains a number of hit points equal to the fire damage dealt.
Frigid Aura. A creature that moves within 5 feet of the slime for the first time on its turn or starts its turn there takes 5 (1d10) cold damage. A creature that touches the slime or hits it with a melee attack while within 5 feet of the slime also takes 5 (1d10) cold damage. This trait triggers when a creature is hit by the slime's pseudopod attack (included in the attack).
Regeneration. The slime regains 10 hit points at the start of its turn. If the slime takes cold damage, this trait doesn't function at the start of the slime's next turn. The slime dies only if it starts its turn with 0 hit points and doesn't regenerate.
Pseudopod. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 6 (2d4 + 1) bludgeoning damage plus 5 (1d10) cold damage.
Brown slimes feed on warmth, drawing in heat from anything around them. The temperature around them is always frigid cold.