Hearthpwn

Since the Big Bad Wolf makes all minions you play summon as 1/1, this deck concentrates on buffs after the minions have been played, as well as useful deathrattles.

In my winning game I played Druid of the Swarm on turn 1 and transformed it into a taunt minion. That killed his three Kindly Grandmothers on the wolf's first turn. Then on my second turn I played a Bonemare, buffing up my druid from turn one, as well as a Druid of the Claw, also transformed into a taunt minion. So, I then had two taunt minions on the board that took care of most of his remaining minions when they attacked.

Note that when a minion is resummoned, they get the original full stats, so use that to your advantage with Corpse Raiser and also by using Moat Lurker on your own minions. In my winning game I resummoned Wobbling Runts twice, which gave me plenty of opportunity to trade minions favourably. Can also be used very favourably on Sludge Belcher, Mukla's Champion, Kel'Thuzad and Gruul.

I included three legendary minions, but in the end I never drew any of them, so if you don't have them they are replacable.

A nice play I didn't get the opportunity to try against the wolf is Skelemancer buffed by Bonemare. Two common cards that become very powerful together!