Arcane Shield
ARCANA UTILITY 1

Duration: 1 minute

For the duration, a barrier of energy shields you, imposing 1 bane on attack rolls against your Defense or Agility.

Triggered
When a creature makes an attack roll against your Defense or Agility, you can use a triggered action to cast this spell. The triggering creature makes the attack roll with 3 banes, and then the effect ends.