You have practiced casting magic in battle, learning techniques that grant you the following benefits:

• You have AD on Constitution saving throws that you make to maintain your concentration on a spell when you take damage.

• You can perform the components of spells even when you have weapons or a shield in one or both hands.

• When a hostile creature's MV provokes an opportunity attack from you, you can use your reaction to cast a spll at the creature, rather than making an op attack. The sll must have a CT of 1A and must target only that creature.