Really excited for Halloween ontshot

My DND club has decided to do a one shot for spooky seasons, and honestly I just wanted to share my character idea with the people of mr. ripper, (been a fan of the channel for awhile, first time posting). My plan is to make an echo knight fighter based on the headless horseman. For flavor im gonna say hes summoning ghost versions of himself. For race probably a kalashtar. However his heads gonna be a pumpkin for fun. Hollowed one backround, and somesort of feat that would make sense. (were starting at level 8) If yall have any suggestions i'd love to hear them, im pretty new to playing DND but im excited to see what happens.

FYI: Our DM loves the rule of cool.