Ambrosia

Amphibious. The dragon can breathe air and water.

Magic Resistance. Ambrosia has advantage on saving throws against spells and other magical effects

Kick. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:  7(1d10 + 2) Bludgeoning damage plus 3(1d6) poison damage.

Euphoria Breath (Recharge 5–6). Ambrosia exhales euphoric gas at a creature within 5 feet of it. Target must make a DC 11 Wisdom saving throw, or for 1 minute, the target can't take reactions and must roll a d6 at the start of each of its turns to determine its behavior during the turn.  1-4 The target takes no action or bonus action and uses all of its movement to move in a random direction. Use a d8 to determine, with 1 starting in the entrance, continuing clockwise.  5-6 The target doesn't move and the only thing it can do on its turn is make a SC 11 Wisdom saving throw, ending the effect on itself on a success

Ambrosia's Thorns (Recharge 4-5) Thorny vines coated in a sleep-inducing toxin lash from your arms. Make a melee spell attack against a target within range. On a hit, the target takes 2d6 piercing damage and must make a Constitution saving throw (DC 11). On a failed save, the target falls into a deep sleep that lasts until another creature uses its action to shake them awake. If the target sleeps for more than 30 minutes before being awoken, they are considered to have gained the benefits of a short rest.