Hearthpwn

Well, at least you tried. But I would leave the balancing to the developers.

I don't really know how Blizzard will change the 12 cards they have said they are looking at when the cycle happens but one idea I had for Savage Roar was to make it affect Beasts only.

It would be flavourful as the ability in WoW just buffs your damage done while in Cat Form so changing the card it only affecting Beasts (and your Hero since your hero power is basically the Hearthstone version of switching to Cat Form) means that it would be impossible to combo with Force of Nature and it also means Blizzard can keep trying to make Beast Druid happen.

In regards to other cards, Master of Disguise will be changed as it limits design space because Animated Armor was originally meant to be Neutral but the fact that MoD existed meant that Blizzard had to make it the Mage card for League of Explorers.

The only other one that I thought would 100% be changed would be Big Game Hunter into either destroy a Giant or Dragon, or just increase the number on the card to destroy an 8 power or higher minion which means a bunch of cards can no longer be affected by it.

Based on different statements from Blizzard members, Knife Juggler , Leper Gnome, Big Game Hunter , Master of Disguise, Giants (since they want to change BGH) and several druid cards are the most likely cards for nerfs. If they change Mountain Giant and Molten Giant + Savage Roar + Force of Nature + Ancient of Lore they can allready call it the biggest change so far. I doubt that there will be way more nerfs.