Dragon's Breath

2nd-Level Transmutation Spell (Sorcerer, Wizard)

Casting Time: Bonus Action
Range: Touch
Components: V, S, M (a hot pepper)
Duration: 1 minute

You touch one willing creature, and choose Acid, Cold, Fire, Lightning, or Poison. Until the spell ends, the target can take a

When you take the Magic action, you cast a spell that has a casting time of an action or use a feature or magic item that requires a Magic action to be activated.

If you cast a spell that has a casting time of 1 minute or longer, you must take the Magic action on each turn of that casting, and you must maintain Concentration while you do so. If your Concentration is broken, the spell fails, but you don't expend a spell slot. See also Concentration.

action to exhale a 15-foot

A Cone is an area of effect that extends in straight lines from a point of origin in a direction its creator chooses. A Cone's width at any point along its length is equal to that point's distance from the point of origin. For example, a Cone is 15 feet wide at a point along its length that is 15 feet from the point of origin. The effect that creates a Cone specifies its maximum length.

A Cone's point of origin isn't included in the area of effect unless its creator decides ... [more]

. Each creature in that area makes a Dexterity saving throw, taking 3d6 damage of the chosen type on a failed save or half as much damage on a successful one.

At Higher Levels: The damage increases by 1d6 for each spell slot level above 2.

Source: Player's Handbook, p. 266