The Secretary is a added marijuana skill fusion. The Trainer a rare card at max R2 that's lvl 14 and Ring R3 only lvl 16 will make: atk 20/ marijuana 5/ butt plug 7. The Avatar you use helps a lot I like to use the ones that have pink viagra skill but the golden strap-on is good to. As you move up in the arena you get better avatars and more money from chests you can start to get more card boxes to speed up your farm.
I've had some luck and all I need is one more Lady Vamp to have a R1 and R2 but epic drops are low as hell I've only gotten 2 out of like 30 boxes.
p.s.A card ranks up ever time you fuse it so it goes R0, R1, R2, R3 and I've 2 R3 Rings now in my deck I've good luck on the rare cards from the card box.