I had a Nef play the Shaman spell to increase totem health by 2.
I'd say that's pretty worthless, considering you also can't get totems from it.
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I feel like that's Rag's greatest strength - He always APPEARS to be at a disadvantage. It's how you use that against your opponent that matters.
All of my wins with Rag have been sub-20 health. Usually involves a late-game taunt, sometimes some lucky Die Insects, and on occasion a Golemagg. Rag's major weakness is the early game, where Nef has a 5 mana advantage over you. Once you get to the late game, if you can stop Vaelstraz (Or if the opponent's draw doesn't get him it) your disadvantage shrinks until there's none left.
The disadvantage grows even weaker on turn 6, if you spend every charge of Sulfuras ASAP. Sometimes smacking a minion in order to secure the kill with it is better than letting Nef swing with it. You can sacrifice the health for sure, especially with Golemagg sitting in wait somewhere. While random, 8 damage for 2 mana is still pretty damn high value.
That said, no more tavern brawl for a few days.