Unchained Incantation

Prerequisite: the ability to cast a spell

• Before you cast a leveled spell, you can choose to take a -5 penalty to the spell attack roll. If the spell attack hits the creature, you add +10 to the spell’s damage. The damage bonus can be only added once per cast of a spell.
• Whenever you kill a creature with a leveled spell, you can cast a Cantrip as a bonus action (even if it has the casting time of an action) on that turn.