Vortex/Torrent ability

Hello!, im attempting to make a torrent/vortex ability that when the targets get close to the caster (the player) they spin/ orbit around them taking damage. I can do the taking damage part but the part where im stuck on is how to actually get them to spin/orbit around the caster.

in the picture above is the script and the fire particle the the part that has the vfx inside. Any help is appreciated