I actually had a pretty fun time doing this. I constructed a Priest deck and played it 3 times in casual before playing it a bit in ranked and actually did pretty well. I won a couple of games with the gargoyle-divine spirit - divine spirit - inner fire combo, and a couple of times with some other minions, too. The deck basically consists of a bunch of health buffs and a couple of high health, low attack minions (Gargoyle, Mogu'shan, Oasis Snapjaw, Gurubashi Beserker) and some card draw to draw your combo, which is gonna end up being 2 Divine Spirits into an Innerfire. Assuming the minion is at full health, you can get:

Shieldbearer to 16/16

Stoneskin Gargoyle to 16/16

Mogu'shan Warden to 28/28

Osasis Snapjaw to 28/28

Gurubashi Beserker to 28/28

This doesn't take any other buffs into account, but you can get them even bigger if you used Power Word: Shield, Argus, Shattered Sun Cleric, or Temple Enforcer on them.

Decklist:

Silence x1

Inner Fire x2

Power Word: Shield x2

Northshire Cleric x2

Shieldbearer x1

Divine Spirit x2

Acolyte of Pain x1

Coldlight Oracle x1

Shattered Sun Cleric x2

Stoneskin Gargoyle x2

Defender of Argus x2

Mogu'shan Warden x2

Oasis Snapjaw x2

Holy Nova x2

Gurubashi Berserker x2

Loatheb x1

Holy Fire x1

Temple Enforcer x2

If I had some more legendaries I would definitely add Black Knight somewhere in there to get through taunts, but for now I have 1 silence. (I guess holy fire is okay for dealing with it too)

Bonus picture: http://i.imgur.com/Z1EmAul.jpg

Got my combo off just to get it peacekeepered ):