Hello guy, Lion here presenting you another amazing deck I've found. I'm a huge fan of decks that aren't made... "Normally" and this one is definitively weird. Also note that it is a very powerful deck, probably Tier 1 right now.

*BCR Exclusive*

I present you, Fist of Darkness.

Monster: 35
3x Genex Ally Birdman
3x Armageddon Knight
3x Caius the Shadow Monarch
3x Ryko, Lightsworn Hunter
3x Jester Confit
2x Destiny Hero - Malicious
2x Battle Fader
2x Dark Grepher
2x Dimensional Alchemist
2x Cyber Dragon
1x Mobius the Frost Monarch
1x Necro Gardna
1x The Dark Creator
1x Chaos Sorcerer
1x Dark Armed Dragon
1x Tragoedia
1x Gorz, the Emissary of Darkness
1x Blackwing - Gale the Whirlwind
1x Plaguespreader Zombie
1x Glow-Up Bulb

Spell: 6
2x Pot of Avarice
1x Charge of the Light Brigade
1x Allure of Darkness
1x Burial from a Different Dimension
1x Monster Reborn

Trap: 1
1x Treacherous Trap Hole

Extra:
2x Chimeratech Fortress Dragon
1x Formula Synchron
1x Armory Arm
1x Ally of Justice Catastor
1x Brionac, Dragon of the Ice Barrier
1x Blackwing - Armed Wing
1x Black Rose Dragon
1x Blackwing - Armor Master
1x Stardust Dragon
1x Colossal Fighter
1x Dark End Dragon
2x Locomotion R-Genex
1x Trishula, Dragon of the Ice Barrier

Thoughts: Why is this deck so good? Because right now, the meta consist of negating spells and traps. Shi En, Naturias, etc. This deck, instead of using Spells and Traps, uses monsters as the Spells instead.

The boss of this deck is Genex Ally Birdman. Being able to Synchro to Locomotion R-Genex is broken.

Check it out, tons of plays to do with the deck.

Combos and simple plays you can do using Birdman:

Spoiler:

Add 3 Magical Merchant. Monster Mash Decks need that card. Milling your cards is the most important here, and because you mill, you only need 3 Pot of Avarice to your Deck.

Also, add 3 staple Spell Cards (Giant Trunade, Dark Hole, Monster Reborn), since they're important and can give you always Card Advantage).

Also add Treeborn Frogs (instead of Malicious) since with milling it's just good to recycle it, then use Monarchs to Summon it, and also can help to Summon GX Ally Birdman.

Also try to fit 1 Glow Up Bulb, since with Jester Confit/Battle Fader it's a Formula Synchron. With Cyber Dragon, it's a LV6 Synchro (Brionac). With Monarchs, it's a LV7 Synchro (Black Rose Dragon).

I hope that I could give you some useful advices.

EDIT: So a version for my fixes:

-1 Charge of the Light Brigade
-1 Allure of Darkness
-1 Burial from a Different Dimension
-1 Dark Eruption
-1 Trap Stun/Treacherous Trap Hole
-1 The Dark Creator
-2 Dark Grepher
-2 Destiny Hero - Malicious

+2 Pot of Avarice
+1 Monster Reborn
+1 Dark Hole
+3 Magical Merchant
+2 Treeborn Frog
+1 Glow Up Bulb

I hate merchant, in a deck where I want some cards in my hand and some cards in my grave he's useless since he mills everything. Armageddon Knight and Dark Grepher put what I NEED in the grave instead of random stuff. This deck is again, a Control-Based deck (With some beatdown). Slow plays and going massive pluses with Birdman is the way to go. I simply hate Merchant.

Treeborn would be good... in a Formula Monarch deck. I don't have the means of putting him in the grave beside random mill luck, which isn't enough. Besides, I have plenty of ways of summoning my Monarch (Jester just simply Sp. Summon himself for no apparent reason, Fader, Cyber Drag too and etc.

I should've posted the combos before. I will edit the post above.

Glow-Up Bulb is good though.

I thought about the staple spells, and like I said above, that deck uses monsters as the spell cards. Dark Hole is ok, Monster Reborn is good too, but tbh with the tests I'd say only Monster Reborn would have been nice while Dark Hole is just a random bonus that will become a 1for1 most of the time since this deck control stuff hardcore.

Check out my update on the first post, then tell me what you think after that. (Updates might not happen today though, I'm a little bit busy)

UPDATES:
-1 Trap Stun
-1 Breaker
-1 Mobius
-1 Witch
-1 Dark Eruption
-1 Cyber Dragon

+1 Treacherous Trap Hole (Better Stun power)
+1 Sangan (Need that Birdman)
+1 D. Alchemist (Only RFP searcher beside Burial)
+1 Pot of Avarice (Mills monsters like crazy= Need some more draw powa)
+1 Monster Reborn (Much better than Dark Erupt)
+1 Glow-Up Bulb

Updated Extra Deck list too.