Cantrip Mastery

You've spent countless hours mastering specialized ways to cast cantrips. This exhaustive study, coupled with constant training and optimization has given you an uncanny level of control over the cantrips you cast. You gain the following benefits. 

• Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.
• Gain access to two additional cantrips from any one class. Furthermore, you can use your spell casting ability when casting these additional cantrips.
• When a hostile creature's movement provokes an opportunity attack from you, you can use your reaction to cast a spell at the creature, rather than making an opportunity attack. The spell must be a cantrip, have a casting time of 1 action and must target only that creature. You can use this ability only once per short rest.