Cruexian

Corrosive Blood. Any creature within 5 ft. of this creature when it dies takes 1d6 acid damage.

Infused Gemstones. Whenever one of these creatures are encountered, the DM should roll a flat d6 to decide what type of Cruexian spawns.

1- Normal Cruexian. Nothing is gained.

2-Fire Cruexian. Tenacious Flesh ability changed.

3-Ice Cruexian. Tenacious Flesh ability changed.

4-Acid Cruexian. Tenacious Flesh ability changed.

5-Lightning Cruexian. Tenacious Flesh ability changed.

6-Metal Cruexian. Tenacious Flesh ability changed.

Pummel. Action Melee Attack: +6 to hit, reach 5 ft., 1 target. Hit: 1 (2d10 +6) [bludgeoning] damage

Molten Bullet. Action Ranged Attack: +5 to hit, range 20/30 ft., 1 target. Hit: 1 (5d4 +5) [fire] damage.

1-Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 13. If the target succeeds, nothing happens but on a failed save the target is grappled until the Cruexian is killed. 

These abilities are only to be used by their corresponding Cruexian.

2-Fiery Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 13. If the target succeeds, they take 1d4 fire damage but on a failed save the target is grappled and takes 1d4 fire damage every round until the Cruexian is killed.

3-Frigid Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 14. If the target succeeds, they take 1d4 cold damage but on a failed save the target is grappled and takes 1d4 cold damage every round until the Cruexian is killed.

4-Noxious Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 13. If the target succeeds, they take 1d4 acid damage but on a failed save the target is grappled and takes 1d4 acid damage every round until the Cruexian is killed.

5-Sparking Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 15. If the target succeeds, they take 1d4 lightning damage but on a failed save the target is grappled and takes 1d4 lightning damage every round until the Cruexian is killed.

6-Steely Tenacious Flesh. As a reaction against any melee attack the Cruexian can force the target to make a DEX saving throw with a DC of 13. If the target succeeds, they take 1d6 piercing damage but on a failed save the target is grappled and takes 1d6 piercing damage every round until the Cruexian is killed.