Need help with my 4 c Control deck

[dracosux]

DECKLIST:

2x delta
2x strand
1x city
1x L O A
1x strip
4x wasteland
1x island
1x plains
2x volcanic
3x underground
4x tundra
1x lotus
1x sol ring
4x moxen
2x exalted
2x swords
1x decree of justice
1x balance
1x mind twist
1x skeletal scrying
1x D T
1x yawgmoth will
1x gorilla shaman
2x fire / ice
1x time walk
1x ancestral
1x mystical
1x F O F
1x morphling
2x cunning wish
4x brainstorm
4x mana drain
4x force of will

SB:
2x engineered plague
2x goblin sharpshooter
2x R E B
2x stifle
1x coffin purge
1x skeletal scrying
1x swords
1x rack and ruin
1x gush
1x B E B
1x disenchant

Any advice on the deck or SB would be appreciated.

[Gilberry]

Could you please post more than a decklist? Maybe, you could tell us your meta-game or some explanation as to your card choices (why the morphling, if you already run 2 exalted and a decree?).

[Dr. Sylvan]

Locked. Read the rules.