I'm having a big discussion with my GM about the multiclassing and the companion lvl stacks of the cavalier and the wildblooded sylvan sorcerer.
By now I'm lvl 11 cavalier so companion is lvl 11, but at my new lvl I want to lvl as a sylvan sorcerer to use de Boon companion (at lvl 13 feat) and the Robe of Arcane Heritage. If I do so, I think I will be lvl 11 cavalier/1 wildblooded with a lvl 13 companion, and in my next lvl up and the use of the Boon Companion feat I say I will be 12 cavalier/ 1 Wildblood with a lvl 17 companion.
Obviously my master says that's not posible because first of all the two classes efective druid's level doesn't stack to determine the Companion level, and second because with the use of the Robe of Arcane Heritage I can't raise the level of the companion,I will just obtain new abilities of the Bloodline progression.
So who of the two is right?
Sorry for my english...