Terra Magica

As an action, you create a magical rune on the ground beneath you. A 10 foot radius circle centered on you is created, it can not be moved but you can move freely. Any creature you designate (including you) during the casting of the spell can stand in the circle to gain its benefits. While standing in the circle you gain +3 to your spell attack and damage rolls.

At Higher Levels: When you cast this spell with a spell slot of 4th level or higher, the bonus increases by an equal amount to the spell's level.