1-level Abjuration
A shimmering field appears and surrounds a creature of your choice within range, granting it a +2 bonus to AC for the duration.
When you cast this spell again before its duration has ended, its previous instance is immediately canceled.
At higher levels: You can cast this spell on a higher spell slot level to choose additional targets for it. For every two spell slot levels beyond 1st, you may choose one additional target.