Crimson Glow Valstrax

Blight Resistance. The valstrax has advantage on saving throws against blight effects such as fireblight, waterblight, or the blight spell.

Dive Attack. If the valstrax is flying and dives at least 120 feet straight toward a target and then hits it with a melee weapon attack, the attack deals an extra 36 (8d8) necrotic damage to the target.

Legendary Resistance (3/Day). If the valstrax fails a saving throw, it can choose to succeed instead.

The Red Comet. The valstrax doesn't provoke opportunity attacks when it takes the Dash action.

Multiattack. The valstrax makes two Bite attacks.

Bite. Melee Weapon Attack. +13 to hit, reach 10 ft., one target. Hit: 15 (2d8 + 6) piercing damage.

Wing. Melee Weapon Attack. +13 to hit, reach 15 ft., one target. Hit: 24 (4d8 + 6) piercing damage plus 9 (2d8) necrotic damage. If the target is a creature, it must succeed on a DC 20 Constitution saving throw or be afflicted with dragonblight for 1 minute. A creature can repeat its saving throw at the end of its turn, ending the dragonblight on a success.

Crimson Salvo. The valstrax fires six draconic energy balls at a target within 60 feet of it. That target must make a DC 20 Dexterity saving throw, taking 27 (6d8) necrotic and be afflicted with dragonblight for 1 minute on a failed save or half as much damage and isn't afflicted with dragonblight on a successful one. If the creature was on the ground, the energy remains in a 15-foot squared area centered on a point where the target was standing when the attack was made. At the start of the valstrax next turn each creature in that area takes 9 (2d8) necrotic damage. A creature can make a DC 20 Constitution saving throw at the end of its turn, ending the dragonblight on a success.

Crimson Beam (Recharge 5-6). The valstrax positions its wings in front of it to release accumulated draconic energy in a 120-foot line that is 10-feet wide. Each creature in that line must make a DC 20 Dexterity saving throw, taking 70 (20d6) necrotic damage and be afflicted with dragonblight for 1 minute on a failed save or half as much damage and isn't afflicted with dragonblight on a successful one. A creature can make a DC 20 Constitution saving throw at the end of its turn, ending the dragonblight on a success.

The valstrax 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 valstrax regains spent legendary actions at the start of its turn.

Attack. The valstrax makes a Wing attack.

Detect. The valstrax makes a Wisdom (Perception) Check.

Rocket Dash (Costs 2 Actions). The valstrax moves up to half its fly speed in a straight line. During this move it can move through other creatures without provoking attacks of opportunity. Each creature the valstrax moves through must succeed on a DC 21 Dexterity saving throw or take 24 (4d8 + 6) slashing damage plus 9 (2d8) necrotic damage and are knocked prone on a failed save. On a successful save, the target takes half damage and is not knocked prone.

Ground Zero Burst.(Costs 2 Actions). The valstrax releases draconic energy in a 15-foot radius around it. Each creature in that area must make a DC 20 Dexterity saving throw, taking 31 (7d8) necrotic damage and be afflicted with dragonblight for 1 minute on a failed save or half as much damage and isn't afflicted with dragonblight on a successful one. A creature can make a DC 20 Constitution saving throw at the end of its turn, ending the dragonblight on a success.