The entire point of control decks is to play passive in the early and survive until they can play their wincon and obviously win. If their wincon doesn’t have enough impact to win at this point, even when they are behind to some degree, then its not a wincon, its trash. Reaching 8 Mana in a tempo heavy fast paced game like duelyst is certainly not an easy thing to do, especially not as player one. So if your opponent gets to play his wincon, which doesn’t even win on the spot in case of variax or death knell and you still can’t manage to finish him off, then in all honesty, it’s an absolutely deserved victory for him.
His game plan worked out and won him the game, that’s how it’s supposed to be. The fact that you were ahead on board/life at this point means little, given your opponent played an lategame focused control deck it would mean complete failure on your end if he was equal/ahead in the early/mid game.
However, given how close the game was, you should really ask yourself if you couldn’t have done 6 more damage if you had played differently instead of just blaming Death Knell for your loss. For example, what if you hadn’t used that saberspine earlier to kill a Manaforger or what ever? You could have saved it as a finishing tool but you didn’t, was the minion you killed really that important?
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