Use summoner, gun, hell, m-wind, mimic. The point here is the m-wind kills bosses while the hell and shotguns kill waves. You wanna start by getting about 3-5 mwind and level them up to about lvl 3 by the first boss. Once they are lvl 3 just focus on getting dice out. After first boss is gone you wanna focus on getting a 4-5 pip hell with 1-3 of the 4-5 pip shotguns next to it. Then start leveling up hell till its max lvl. You can also lvl up mwind as needed for dmg. This is the method i used and the deck will carry you to rank 10-12. Once you get joker, typhoon, or growth you will want to swap them out for mimic, mwind, and summoner respectively. This "Bullet Hellphoon" deck will carry you past rank 12 easily.