Monsters: 15

Cyber Dragon x1
Morphing Jar x1
GB Bestiari x1
GB Equeste x1
GB Darius x1
GB Hoplomus x1
GB Laquari x2
GB Murmillo x2
GB Samnite x2
GB Secutor x1
Test Tiger x2

Spells: 11

Book of Moon x3
Dimensional Fissure x3
DDR x1
GB Proving Ground x3
Smashing Ground x1

Traps: 14

Solemn x1
Waboku x2
D Prison x1
Mirror Force x1
Compulsory Evacuation Device x2
Bottomless x2
Call of the Haunted x1
Return from the Different Dimension x1
GB War Chariot x1
Torrential x1
Trap Dustshoot x1

Fusions: 8

Elemental Hero Gaia x1
Chimeratech Fortress Dragon x1
GB Heraklinos x3
GB Gyzarus x2
Chimeratech Overdragon x1

Side: 11

Light Imprisoning x2
MST x1
Heavy Storm x1
Gorz x1
Mirror of Oaths x2
Lightning Vortex x2
My Body As A Shield x2

If you got 15th at Nats, then this deck barely needs fixing at all. Personally I'd -1 Murmillo and +1 Test Tiger.

Drop Dprison for 3rd waboku.

drop ddr for cold wave.

I'd definitely +1 test tiger, dustshoot seems pretty unnecessary.

No i didnt fifteenth at nationals, i got a nationals invite by getting fifteenth at regionals. The trap dustshoot is there because i can not think of what the 40th card was so i just ssaid screw it and listed it

You on kcvds? I would love to duel this deck, because I'm unfamiliar with a gb deck using dimensional fissure. I usually stick to special summoning from the grave with darius for quick fusion.
If not, I suppose I could just make the deck myself, but a deck always seems to run better in the hands of the creator.

I had a KCVDS on my other computer but it slowed the computer down more and more. That computer just doesnt work anymore and i dont want to do that to this one but yea if your going to a regionals or something soon it has no problem taking down lightsworn. I dont recommend this exact build though, I'll post an updated one. This one was one I honestly threw together in about 10 minutes because the vendor guy didnt have the cards i need for gadgets for sale

Hah I wont be seeing you at nationals. I'm too broke for cards.
It surprises me that kcvds would clow down your computer so much. This ones kinda a piece of crap but it runs kcvds, warcraft, mabinogi, and all sorts of stuff.

Oh... that sucks I'm too broke for it too, but I couldn't play with just an online thing and I really don't want to get out of it because it's the only hobby I've really liked... I'm sure you're not too broke build a competitive gladiator beast. A Non Fissure Glad would be about $80 and a good Fissure Glad would be about $105. Those are probably the cheapest options right now. Lightsworn is going to be a lot cheaper in a couple months though