-1 Gatling Dragon (Which, being a fusion monster, should be in the extra deck to begin with)
-1 Barrel Dragon
-1 Blowback Dragon
-1 Twin-Barrel Dragon
-1 Ojama Trio
-1 Scapegoat
-2 Gamble
-1 Future Fusion
-2 Gambler of Legend
-1 Sand Gambler
-1 The Sanctuary in the Sky
-1 Lucky Chance
Now to make some CHANGES-
+3 Cup of Ace
+3 Nova Summoner
+2 Creature Swap
+2 Shining Angel
+3 Honest
+1 Fairy Box
You missed the now-useless Polymerization and the copy of Creature Swap that was already present in the Deck, ACC.
First of all, we should add some spacing to the decklist to make it easier to look through.
Monsters: 27
1x Blowback Dragon
2x Arcana Force XIV – Temperance
1x Barrel Dragon
1x Gorz the Emissary of Darkness
2x Arcana Force XVIII – The Moon
1x Arcana Force XXI – The World
2x Arcana Force EX – The Dark Ruler
1x Twin-Barrel Dragon
2x Arcana Force 0 – The Fool
2x Arcana Force 1 – The Magician
2x Arcana Force 3 – The Empress
2x Arcana Force 4 – The Emperor
2x Arcana Force VII – The Chariot
1x Marshmallon
1x Snipe Hunter
2x Gambler of Legend
1x Sand Gambler
1x Time Wizard
Spells: 13
2x Light Barrier
1x Future Fusion
1x Heavy Storm
1x Mystical Space Typhoon
1x Monster Reborn
2x Second Coin Toss
1x Polymerization
1x Creature Swap
1x Scapegoat
1x The Sanctuary in the Sky
1x Valhalla, the Hall of the Fallen
Traps: 10
1x Arcana Call
2x Reversal of Fate
1x Mirror Force
1x Torrential Tribute
1x Solemn Judgment
2x Gamble
1x Lucky Chance
1x Ojama Trio
The first problem to jump out here is that there are too many cards in this deck. Specifically, there are 10 cards too many. We should deal with removing those first. I suggest the following:
-1 The Sanctuary in the Sky
-1 Barrel Dragon
-1 Ojama Trio
-1 Scapegoat
-1 Future Fusion
-1 Polymerization
-2 Gamble
-1 Sand Gambler
-1 Arcana Force EX - The Dark Ruler
Most of these were removed for similar reasons that ACC mentioned, but I also removed a copy of The Dark Ruler because you need to cut down on the Tribute Monsters as well as stick to the easiest forms of summoning that you can. Since the Dark Ruler requires three monsters on the field, this does not qualify and thus we can remove a copy for the sake of space.
We are left with:
Monsters: 24
1x Blowback Dragon
2x Arcana Force XIV – Temperance
1x Gorz the Emissary of Darkness
2x Arcana Force XVIII – The Moon
1x Arcana Force XXI – The World
1x Arcana Force EX – The Dark Ruler
1x Twin-Barrel Dragon
2x Arcana Force 0 – The Fool
2x Arcana Force 1 – The Magician
2x Arcana Force 3 – The Empress
2x Arcana Force 4 – The Emperor
2x Arcana Force VII – The Chariot
1x Marshmallon
1x Snipe Hunter
2x Gambler of Legend
1x Time Wizard
Spells: 9
2x Light Barrier
1x Heavy Storm
1x Mystical Space Typhoon
1x Monster Reborn
2x Second Coin Toss
1x Creature Swap
1x Valhalla, the Hall of the Fallen
Traps: 7
1x Arcana Call
2x Reversal of Fate
1x Mirror Force
1x Torrential Tribute
1x Solemn Judgment
1x Lucky Chance
Now we are at least down to 40 cards, yet the deck still has a bit too much focus on monster effects, so we need to adjust it to allow for more support.
-2 Gambler of Legend
-1 Blowback Dragon
-1 Time Wizard
-1 Arcana Call/Reversal of Fate
+1 Sangan
+1 Valhalla, the Hall of the Fallen
+2 Cup of Ace
+1 Light Barrier
Cup of Ace is the token draw engine, acting as a Pot of Greed upon a successful coin toss. Sangan is added over Time Wizard simply because he serves as monster retrieval, being able to pull out virtually any low-level monster this deck has. You can add Time Wizard to the Side Deck if you want, but if you are making this deck specifically for CARD GAMES or a similar RP, then a Side Deck is rather useless since most duels will only be a single round. Valhalla and Light Barrier are added for pure support, helping with the gambling monsters in this deck. Also, with Light Barrier maxed out, you could
theoretically remove a copy of Second Coin Toss for another copy of Creature Swap, but I personally advise against it.
Alternatively, you could focus specifically on high-level Arcana Force monsters, removing The Magician and The Emperor entirely for an extra copy of The Empress and a full retinue of The Lovers, then exchanging both copies of Temperance for two more copies of The World, but this falls more to personal preference.
As for the Side Deck, however...
-2 Heavy Mech Support Platform
-2 Cestus of Dagla
+3 Nova Summoner
+1 Cup of Ace