I've used arcane archer's imbue arrow ability before and as I understand it I can cast any "area" spell and have the arrow be the point of origin. However, if I cast a spell that is used multiple times such as Fire Breath or Sonic Scream, how do I resolve the nest rounds of the cone emination?
Are they still centered on the arrow?
Do I have to shoot another arrow?
If I shoot a target and hit does the center move if he moves?