There are 2 major pushes with this deck, elite barbarians and valkerie, and sparky and wizard. Surprisingly, with these high elixer pushes, the average elixer cost is 3.5. Some alterations are...
Executioner instead of wizard
Skeleton army instead of Goblin Gang
Arrows instead of log or zap
Fire spirits instead of mirror
Dark Prince instead of Valkerie
Giant instead of Elite Barbarians
The last alteration gives you an entire different strategy, giant, sparky and wizard. It is a powerful offensive push that is difficult to defend.