Hearthpwn

Yea those cards are quite important. Farsight can be changed for another acolyte of pain or other form of card draw that it cheaper. Ive also seen some decks that don't run the drakes. Zap can be teched out if needed. However the other cards are quite essential to the combo, and the board clears are important. Some control lock decks can win but it is quite rare; they either need your combo to misfire (possible but rare) or they are playing cube lock and create too many big threats to clear or burst you with doom guards. But most of the time, shudderwok shaman will win.