At 7th level a Wyrm gains a new breath weapon option. When you use your breath weapon, you choose which option to use. All saving throw DCs are your Breath Weapon DC.
Black Dragon; Caustic Breath: If a creature fails its Dexterity save against your breath weapon, it continues to take 5 acid damage at the start of each turn. At the end of each turn, it may make a Constitution save to end this effect. A creature can only have one of these effects on it at any one time. This breath weapon deals 2d6 damage less than your standard breath weapon.
Blue Dragon; Shocking Breath: If a creature fails its Dexterity save against your breath weapon, it becomes unable to take reactions. At the end of each turn, it may make a Constitutions save to end this effect. This breath weapon deals 2d6 damage less than your standard breath weapon.
Brass Dragon; Pacifying Breath: You gain a new breath weapon option, a cone of pacifying gas. It is a cone sized for your age category. Each creature in that area must succeed on a Constitution saving throw or fall unconscious for up to 1 minute. This effect also ends for a creature if the creature takes damage or someone uses an action to wake it.
Bronze Dragon; Repulsion Breath: You gain an additional breath weapon, a cone of repulsive energy. It is a cone sized for your age category. Each creature in that cone must make a Strength saving throw. On a failed save, the creature is pushed 60 feet away from you.
Copper Dragon; Slowing Breath: You gain an additional breath weapon, a cone of slowing gas. It is a cone sized for
your age category. Each creature within the cone must succeed a Constitution save or be slowed for up to 1 minute. While under its effect, a creature’s speed is halved, it can’t use reactions. On its turn, it can use either an action or a bonus action, not both. Regardless of the creature’s abilities or magic items, it can’t make more than one melee or ranged attack during its turn. If the creature attempts to cast a spell with a casting time of 1 action, roll a d20. On an 11 or higher, the spell doesn’t take effect until the creature’s next turn, and the creature must use its action on that turn to complete the spell. If it can’t, the spell is wasted. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a successful save.
Gold Dragon; Weakening Breath: You gain an additional breath weapon, a cone of weakening gas. It is a cone sized for your age category. Creatures in that area must succeed on a Strength saving throw or have disadvantage on Attack rolls, Strength checks, and Strength saving throws for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Green Dragon; Toxic Breath: If a creature fails its Constitution save against your breath weapon, it becomes poisoned (disadvantage on attacks and checks). At the end of each turn, it may make a Constitutions save to end this effect. This breath weapon deals 2d6 damage less than your standard breath weapon.
Red Dragon; Searing Breath: If a creature fails its Dexterity save against your breath weapon, it continues to take 5 fire damage at the start of each turn. At the end of each turn, it may make a Dexterity save to put out the flames and end this effect. A creature can only have one of these effects on it at any one time. This breath weapon deals 2d6 damage less than your standard breath weapon.
Silver Dragon; Paralytic Breath: You gain an additional breath weapon, a cone of paralyzing gas. It is a cone sized for your age category. Each creature in the area must succeed on a Constitution saving throw or be paralyzed for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
White Dragon; Frigid Breath: If a creature fails its Constitution save against your breath weapon, its speed is reduced by half for 1 minute. At the end of each turn, it may make a Constitutions save to end this effect. This breath weapon deals 2d6 damage less than your standard breath weapon.