Bg infect (suggest)

i studied this kind of deck and i think that this is more compititive compare to other infect deck............ this is how the sideboard works:......... valakut ramp: -4 duress,-4 virulent wound,+3 memoricide,+3 giant growth,+2 go for the throat......... ub rug bug uw control: -4 virulent wound,-1 virulent swipe,+3 memoricide,+2 go for the throat......... br vampire rdw: -2 duress,-4 virulent swipe,-2 explore,+2 go for the throat,+3 giant growth,+3 morbid plunder......... ww quest: -2 duress,-2 virulent swipe,-2 explore,+2 go for the throat,+4 natures claim........ boros quest: -2 duress,-1 virulent wound,-2 virulent swipe,-2 explore,+2 go for the throat,+3 natures claim,+2 morbid plunder...... elf elfvine: -4 duress,-2 explore,-2 virulent swipe,+2 go for the throat,+4 natures claim,+2 memoricide......... ub infect proliferate: -2 virulent wound,-2 virulent swipe,-1 duress,-1 explore,+2 go for the throat,+ natures claim,+2 memoricide......... bg infect: -2 duress,-2 explore,+2 go for the throat,+2 giant growth.......... eldrazi green: -2 duress,-4 virulent wound,+2 go for the throat,+3 giant growth,+1 morbid plunder......... i dont include livewire lash because it will delay your game and your opponent will easily predict your game plan(put livewire lash for 2 and equip it for 2 will delay your game, also your opponent know that what you will do next is to pump that equip creature,so before that they will kill your creature first before u can equip you livewire lash)......... i want to build this deck so i need some help for this..........comments are greatly appreciated..........if you want to add something in this deck or in the sideboard, please dont hesitate to post your suggestions..........thank you!!!=)