Against combo/control not having the combo makes these matchups far more difficult. Usually you combo early and win the game on the spot. Without the combo you need to try to get an early Voidlord down and then kill it off for Voidwalkers for a hardcast turn 6 Darkest Hour. If you have Darkest Hour and no Bloodbloom, it is correct to play out the token producer the turn before you have access to 6 mana. Sometimes a couple imps stick and the sooner you play the Darkest Hour the better it is. If you do not have Darkest Hour, the game plan becomes to protect the Nerubian Unraveler. Try to go get one down behind a taunt and start going face. If you are able to stick 2 Nerubian Unravelers then you all but win the game on the spot. The increased mana cost for spells protects your board and allows you to play large minions to close the game out with.