Objective 1: get a Pendulum Scale
Objective 2: Get Zefra Metaltron by way of Wee Witch's Apprentice
Objective 3: Cream your opponents with your Rank 4s and 7s, Supreme King Zarc, and your Level 8 Synchros
These are just idealistic goals. If all you can do is keep monsters on the field, that's usually good enough. This deck does require a bit of reliance on the Extra Deck, though.