How can i improve my deck to be ready for shonen jump tourny?

Question

Monsters x18

Dark Magician x2

Dark Magician Girl x2

N.S. Grand Mole

Marshmallon

Spirit Reaper

Magician's Valkria x2

Buster Blader

Skilled Dark Magician x3

Skilled White Magician x2

Dark-Eyes Illusionist

Drillroid

Strike Ninja

Magic x14

Swords Of Revealing Light

Brain Control

Mystic Plasma Zone

Fiend's Sanctuary

Heavy Storm

Mystical Space Typhoon

Lightening Vortex x2

Monster Reborn

Magical Dimension x2

Polymerization

Scapegoat

Sage's Stone

Traps X11

Magician's Circle x2

Negate Attack x3

Magic Jammer

Royal Decree

Skill Drain

Magic Cylinder

Dark Illusion x2

Fusion x1

Dark Paladin

Please feel free to include or exclude any card because I know where to get what ever I need. Thank You

Answer 1

I seriously question that you were able to come in 2nd and 3rd place at any SJC tourney. Metagame.com keeps records of all past SJCs so it isn't too difficult to find out who you might be.

Monsters: 18

1 Dark Magician of Chaos

2 Dark Magician

2 Dark Magician Girl

2 Skilled Dark Magician

2 Kycoo the Ghost Destroyer

3 Magical Exemplar

1 Snipe Hunter

1 Sangan

1 Neo-Spacian Grand Mole

1 Morphing Jar

1 Marshmallon

1 Spirit Reaper

Spells: 15

2 Magical Dimension

2 Lightning Vortex

1 Smashing Ground

1 Heavy Storm

1 Mystical Space Typhoon

1 Monster Reborn

1 Premature Burial

1 Brain Control

1 Soul Exchange

1 Swords of Revealing Light

3 Shrink

Traps: 8

1 Torrential Tribute

2 Threatening Roar

2 Bottomless Trap Hole

3 Solemn Judgment

Total: 41 cards

Side Deck: 15

1 Light and Darkness Dragon

1 Raiza the Storm Monarch

2 Cyber Dragon

1 D.D. Crow

2 Enemy Controller

2 Hand Destruction

2 Dark Bribe

2 Dust Tornado

1 Mirror Force

1 Trap Dustshoot

Answer 2

if you want to a shonen jump with the build they would laugh at you theres too much to fix here

Answer 3

Hate to break it to you, but this style of deck can never win a shonen. You will have a better shot just scrapping the Magicians and building like a DAD return deck, a lightsworn OTK deck, Jinzo returner deck, counter fairy, DDT, or maybe even a burn deck. But the magicians are a little slow and out dated and far to easy to stop.