(You) 6x Stone skin, 6x Mind gate
(Opponent) 6x Stone skin
I think like 42x stone skin possible?..
More. Both with 6x stone skin, 6x mindgate.
You mind gate mind gates to get more than 6 of those, and then mindgate stone skins with the mindgated mind gates to get more of those.
Potentially, if you drew all 6 mindgates before any stone skins at all, you could get
6*15+6 stone skins, or 96.
96*50 = 4800+100=4900 max health.
And if you throw in sods...
96 sods = 1920
+4900 = 6820
So, if all the cards came out right (highly unlikely), you could potentially get 6820 max health, I think.