Forum:Review my deck please?

I made this deck, it revolves around discarding mostly. But I am curious to see what people think of it. I have had pretty good using success using this deck, and I think its good. Please be kind and mature.

MAIN DECK Monsters (20)

-Brron, Mad King of Dark World (3) -Fabled Raven (2) -Grapha, Dragon Lord of Dark World (3) -Helpoemer (2) -Hiro's Shadow Scout -Trance Archfiend -Marie The Fallen One -Scarr, Scout of Dark World -Snipe Hunter (3) -Snoww, Unlight of Dark World (2) -Tragoedia

Spells (8) -Card Destruction -Dark World Dealings (3) -Mystical Space Typhoon -The Cheerful Coffin -The Gates of Dark World (2)

Traps (12) -Appropriate -Drastic Drop Off (3) -Fine -Forced Requisition -Magical Thorn -Mind Crush -Robbin Goblin

EXTRA DECK Synchros (9) -Black Rose Dragon -Brionac, Dragon of the Ice Barrier -Chaos King Archfiend -Dark Highlander -Fabled Leviathan -Fabled Valkyrus -Hundred Eyes Dragon -Stardust Dragon -Stygian Sergeants

XYZ (2) -Gem-Knight Pearl -Number 40: Gimmick Puppet - Heavens Strings