Check out my profile where I'll try to list some of the best wild decks for each archetype. I always appreciate suggestions to improve my decks.

Mecha'thun druid: Draw through your deck as quickly as possible using Kael'thas Sunstrider until you can play Stamping Roar > (summon Giant Anaconda) > any damage dealing spell to kill the anaconda > (summon Mecha'thun) > Naturalize to destroy your opponent.