Coconut Totem

 Natural Growth. At the end of its turn, roll 1d4. On a 4 heal 1d10 health.

Magical Nodes. The Coconut Totem has 4 magical nodes: two in its shoulders, one on its upper back, and one in front of its pelvis. If these nodes are removed, the construct falls apart.

Multiattack. The Coconut Totem may may 3 attacks on its turn: two melee attacks and one ranged attack.

Ground Slam. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 13 (3d6 + 4) bludgeoning damage. 

Spiky Fist. Melee Weapon Attack: +6 to hit, reach 5 ft., 1 target. Hit: 16 (3d8 + 4) piercing damage. 

Palm Leaf Machine Gun. Ranged Weapon Attack: +5 to hit, range 40/80 ft., 2 targets. Hit: 15 (5d4 + 5) piercing damage.

Coco Bomb. Ranged Weapon Attack: DC 14 DEX save, range 60 ft., All targets within 5 feet. Hit: 8 (1d10 + 3) fire damage.

Defense Mode. The coconut totem may use a bonus action to curl up into a ball, activating a defense shield, raising its AC to 25. The coconut totem may not make any attacks or take any reactions while in this mode. The coconut totem's movement speed is halved, as it can only roll around. You gain resistance to all damage types while in this form.

Coconut Fire Department. When bit by fire damage, the coconut totem can use a reaction to loose vulnerability for all following fire attacks for 1 round.

The Coconut Totem can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.

Supercharge machine gun (Costs 1 Action). Next time it is used, the palm leaf machine gun does an extra 1d4 damage.

Super Jump (Costs 1 Action). Coconut Totem jumps up to 30 feet away. This action does not provoke opportunity attacks. If the jump lands on a creature, that creature must make a DC 10 DEX saving throw or take 1d6 bludgeoning damage. The creature is moved 5 feet in any direction.

Nutty Spin (Costs 2 Actions). Coconut Totem may stretch out its arms and spin. All creatures within 5 feet of it must make a DC 14 DEX save or take 1d6 bludgeoning damage.