Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of Slowing Breath.
Rend. Melee Attack Roll: +7, reach 10 ft. Hit: 15 (2d10 + 4) Slashing damage.
Acid Breath (Recharge 5–6). Dexterity Saving Throw: DC 14, each creature in a 40-foot-long, 5-foot-wide Line. Failure: 40 (9d8) Acid damage. Success: Half damage.
Slowing Breath. Constitution Saving Throw: DC 14, each creature in a 30-foot Cone. Failure: The target can’t take Reactions, its Speed is halved, and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.
Amphibious. The dragon can breathe air and water.
Multiattack. The dragon makes two Rend attacks.
Rend. Melee Attack Roll: +5, reach 5 ft. Hit: 8 (1d10 + 3) Slashing damage.
Lightning Breath (Recharge 5–6) Dexterity Saving Throw: DC 12, each creature in a 40-foot-long, 5-foot-wide Line. Failure: 16 (3d10) Lightning damage. Success: Half damage.
Repulsion Breath. Strength Saving Throw: DC 12, each creature in a 30-foot Cone. Failure: The target is pushed up to 30 feet straight away from the dragon and has the Prone condition.
Rend. Melee Attack Roll: +4, reach 5 ft. Hit: 7 (1d10 + 2) Slashing damage.
Acid Breath (Recharge 5–6). Dexterity Saving Throw: DC 11, each creature in a 20-foot-long, 5-foot-wide Line. Failure: 18 (4d8) Acid damage. Success: Half damage.
Slowing Breath. Constitution Saving Throw: DC 11, each creature in a 15-foot Cone. Failure: The target can’t take Reactions, its Speed is halved, and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.