I want to play a battle herald and going through Realsorceror’s Guide to the Battle Herald there is the following advice:
Cavalier (Variant) (6 levels)
If you are using the multiclassing variant from Pathfinder Unchained, you could choose Cavalier as your secondary class without ever needing to leave Bard or Cleric (evangelist). In my opinion this is a superior option to the reverse as you’ll have more spellcasting, more skill points, and qualify a level earlier.
I just do not understand that. I read through the multiclassing but could not find anything that let me take a secandary class without leaving my original. Could anyone help me understanding what the author means and how that works?