Just finished the Pathfinder book Advanced Class Guide, and I have a few ideas I’d like to see from it. Here is one for the Arcanist.
Schooled Sorcerer (Archetype)
You went to school like all other wizards did. You hit the books hard, learned from the masters, and showed great promise, but you also had something else up your sleeve-you were a closet sorcerer. You cultivated the talents in your own blood along side your own class-based studied.
Dual Focus(Su): At 1st level, a schooled Sorcerer chooses a school of magic and a bloodline. The arcanist also chooses either one to gain at a slower path. For the one progressing at a normal pace, the Schooled Sorcerer gains all the benefits as described for that school or bloodline. For the chosen ability gained at a slower pace, the Schooled Sorcerer gains the benefits of the school or bloodline as a wizard or sorcerer four levels lower than his or her actual level.
The archanist must select two additional schools of magic as opposition schools and has all the penalties of casting and preparing spells from those schools as a wizard would. This ability replaces the arcanist exploits gained at 1st, 3rd, 5th, 7th, 9th, and 11th level.