Use King of the Swamp depending on what you need. You can send it to the Graveyard to get Polymerization or use it as a Fusion Substitue. It's recommended to have more copies of this card and replace other Fusion Substitute monsters.
Done right, this deck is ironically easier to beat then the lvl 20 Ojama deck, which can throw off tempo super hard. Just some tips if your struggling:
I suggest using cards that have direct removal. Other then regretful rebirth, Chazz has no way to stop his dragons dying.
When you see a Masked Dragon on the field, leave it alone. Unless you can guarantee kill whatever it summons out, then don't hit it. Otherwise, if it summons out a lvl 3 AD and you have nothing left to swing with, its gonna evolve next turn and start causing problems.
The biggest problem with this deck is AD special ability. Remember that Chazz has to discard something with higher attack then your monster to kill it. If you can get huge creatures out fast, like synchro stuff, you can negate AD ability.
Personally I always use Crystal beasts for this: the creature can be somewhat throwaway, with Crystal Raigeki being phenomenal at keeping the board free of scary stuff
Can anyone explain the reason dark flare Knight is in the farming deck? I genuinely don't understand what his use is (other than for the union atk) surely any 2200+atk unit can replace him if that's his only use?
The most broken, cancer and disgusting unfarmable 40 CPU ever. Look at what this son of a b.itch did: he had an Arm Dragon lv5 on the field against my weaker monster, while I had full LP (so no chance of ending the duel that turn), and his only Arm Dragon lv7 in hand. Instead of attacking to destroy my monster wanting to spec summon his lv7 (only to get a WoD in his face) HE DISCARDS IT for the cancer destruction effect. WHY. WHY THE HELL.