Cold ooze (enemy idea)

Here’s one for you DM’s that want an enemy that is only deadly in cold temperatures.

This cold cover ooze can only form in cold temperature. In all other temperatures it is unable to properly form & as such, cannot attack/move/or use any attributes. However, when it is formed in cold temperatures, it is a powerhouse, being able to ram it’s whole cold body into enemies & doing both frost damage, acid damage, & physical damage, as well as disgusting enemies & dealing these damage over time.

Stats

CR: 4 (or 0 if not in cold conditions)

Hp 84 (or 3 if not in cold conditions)

Ac: 16 (or 9 if not in cold conditions)

Str: 14 (or 3 if not in cold conditions)

Dex: 6 (or 16 if not in cold conditions)

Con: 20 (or 5 if not in cold conditions)

Wis:6

Int: 3

Cha: 4 

Speed: 25 [10x10 size] (speed 0 if not in cold conditions)

Attributes:  

Cold body: all melee attacks done against the enemy, dealing 1d2 -1 damage to the attacker (loses this if not in cold condition)

Acidic Form: All attacks done by this enemy, deals an extra 1d4 +str acid damage 

Frost Form:All attacks done by this enemy, deals an extra 1d4 +str frost damage (Loses this if not in cold condition)

Attack: Slam| to hit (+str)| Damage: 1d8 + str

-Swallow|to hit (+con)| Damage 1d4 +con (once it hits, the enemy swolls the player & will deal 1d4 + mods, each turn they are stuck in the enemy)