Forum:Magician Deck Help/Rate

I have been playing yu-gi-oh since it came out in the U.S but after a few seasons I stopped buying cards, but continued playing. Recently I chanced upon a friend who quit who was willing to trade the cards for my art services.

So I reconstructed a deck (attempting to keep it within tourney regulations)

Considering he gave me pretty good mage cards I made a magician deck help/rate

Extra Deck

Tempest Magician

Main Deck

Dark Magician x2 Fortune Lady Dark Fortune Lady Earth Sorcerer of Dark Magic Magicians Valkyria Solitaire Magician x2 Fortune Lady Light Fortune Lady Fire Shadow Priestess of Ohm Tuned Magician Cruscader of Endmyion Jester Confeti Flamvell Magician Royal Magical Library

Magic Dark Magic Attack Diffusion Wave Motion Raregold Armor Monster Reborn Riryoku Yami Time Passage Card Destruction Synchro Boost Mystical Space Typhoon Supervise

Trap Ultimate Offering Defense Draw Rope of Life Limit Impulse x2 Dust Tornado Shadow Spell Anti--Magic Prism Spellbinding Circle Sakuretsu Armor Enlightenment Raigeki Break

Someone commented that this deck is unbalanced, and while using it I noticed some problems as well.

Also when I looked at top 8 decks etc. I noticed that a lot of decks have a lot of x3 of certain cards etc.

Can anyone divulge any deck building tips? I'm kind of new to this kind of deck building (used to just stuff in any card I thought was good)