Bands of the War Mage

These light-colored arm-bands are adorned with numerous arcane sigils that form a spiraling pattern towards the wearer's wrists. The bands carry three charges. When a hostile creature's movement provokes an opportunity attack from you, you can use your reaction to expend a charge to cast a spell at the creature, rather than making an opportunity attack. The spell must have a casting time of 1 action and must target only that creature. The bands recover 1d3 charges after a long rest.

Notes: spellcaster