So the way circlet works is it refills your mana but it doesnt work with wands because it activates immediately when they start draining mana. It does work with Vortex but depending on the order they activate Vortex might increase your mana after Acuity refills it so you will still need to charge up a little before the 2nd cast goes off. Multiple Vortices + 1-2 Wind Slicers might be good too with Parras Cyclone