How about 4 prot warriors + druid?

Put the druid in one place and he spams heals. The wars move around after the other team and as soon as they get frozen or something intervene back to healer and repeat. Combined with trinket, stuns, fears, aoe stuns, maybe the other team won't be able to put so much pressure on my druid.

Also 4x spell reflect must hurt, especially with imp spell reflect no?