Hearthpwn

I know some pro players have been testing it, but honestly, I feel like it trades too much up, and not down. Getting 2 for 1 with your minions is really strong as the zoo player, usually you trade 2 minions into 1. 
Flame Juggler is just plain better than Wrathguard, because of this.

- Slugg

-1 doomguard +1 leeroy

I tried that in a few games only to figure out that Leeroy sucks when you need to fight for board control. The only real benefit of Leeroy over a second Doomguard is if you trying to build up finishing combos (e.g. Power Overwhelming).

If you're going to run leeroy, then don't run Doomguard.

Doomguard is for board, leeroy burst. 
Then rather go all in on burst and add a couple of soulfires, along with the leeroy ;)

 - Slugg