Dragon Aura

You touch one willing creature and channel elemental magic into a translucent aura around them resembling a mighty dragon. Choose acid, cold, fire, lightning, or poison. Until the spell ends, the target gains the following benefits:

• Its base AC becomes 16 + your spellcasting ability modifier.
• Its base movement speed is increased by 30ft and it gains a fly speed of 60ft.
• It has resistance to damage of the chosen type.
• It can use its action to make two melee spell attacks (Using your spell casting ability) against a target within 5 feet of it. Oh a hit, the target takes 3d8 damage of the chosen type.
• It can use an action to exhale energy of the chosen type in a 15-foot cone. Each creature in that area must make a Dexterity saving throw, taking 5d6 damage of the chosen type on a failed save, or half as much damage on a successful one.
• When hit by a melee attack, it can use its reaction to deal 3d4 of the chosen type to the attacker.