Defensive Casting
1st-level abjuration (Artificer,Wizard)
- Casting Time: 1 bonus action
- Range: Self
- Components: V
- Duration: Concentration, up to 1 minute
You gain a +1 bonus to Armor Class against all opportunity attacks and all other attacks made as part of a creature's reaction. Each time you cast another spell of 1st-level or higher while concentrating on this one, the bonus from this spell improves. The bonus increases by a number equal to the level of the spell slot you used to cast the spell. While the bonus from this spell is +2 or higher, your spell attacks deal an extra 1d4 force damage on a hit.
At Higher Levels. If you cast this spell using a spell slot of 2nd level or higher, the initial bonus improves by +1 for each spell level above 3rd.