Should I make any changes to my deck?

[nemesis9521]

4 color GAT

4 Quirion Dryad
1 Psychatog
4 Force of Will
4 Mana Drain
2 Misdirection
4 Accumulated Knowledge
1 Gush
1 Ancestral Recall
2 Impulse
2 Brainstorm
3 Cunning Wish
1 Demonic Tutor
1 Vampiric Tutor
1 Mystical Tutor
1 Merchant Scroll
2 Duress
1 Mind Twist
1 Yawgmoth’s Will
1 Time Walk
1 Fire/Ice
1 Black Lotus
1 Mox Sapphire
1 Mox Jet
1 Mox Emerald
1 Mox Ruby
1 Mox Pearl
4 Underground Sea
3 Tropical Island
2 Volcanic Island
2 Island
4 Polluted Delta
1 Strip Mine

Sideboard
1 Berserk
2 Artifact Mutation
1 Rack and Ruin
1 Oxidize
3 Red Elemental Blast
1 Blue Elemental Blast
1 Stifle
1 Ghastly Demise
1 Smother
1 Coffin Purge
2 Ground Seal

[Kowal]

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