Mulligans
This is a budget version to beat Heroic Free Medivh. Probably my favourite final boss in an adventure. You need to rescue Medivh from Prince Malchezaar but first you need to defeat Nazra Wildaxe. All of the information about the match is here.
The strategy here is to stand up against Nazra Wildaxe until you have insanely large jade golem, like when you are in 17/17 or plus and you have some Jade Idol s prepare in hand. Because of the almost sure Twisting Nether after you defeat th orc.
Druid
Even more budget version (less rares):
You can use only 1 Gadgetzan Auctioneer or 1 Jade Idol , none Spreading Plague if you don’t have it, but if useful as desperate way to proctect you against Nazra and useful that the end when you don’t have more taunts against the Prince. Grizzled Guardian is really not that necessary.
The Ok cheaper replacements are Swipe , Healing Touch , Wild Growth , Mark of the Wild , 1 Acidic Swamp Ooze , Fen Creeper, Biology Project.
If you have the cards or the dust:
+1 Malfurion the Pestilent for -1 Wrath
+ 1 Ultimate Infestation (one is enough) for -1 Wrath
+ 2 Earthen Scales for Healing Touch and Barkskin
+1 Kel'Thuzad for Grizzled Guardian
Explanations:
Barkskin is good for Gadgetzan Auctioneer (you draw a card and protect him). Oozes (Acidic Swamp Ooze or Gluttonous Ooze ) aren’t here because they don’t worth it. You could recruit them with Oaken Summons , and that sucks. The at least 3-attack minions with Taunt are great against Nazra. (Fen Creeper can be an other option or Sunwalker )
Easiest and cheaper way to get this!!