Great idea Majofa! I kept thinking that there was no point trying to damage him because of the Miracles, but I'm guessing they are pretty high on his discard list because it's the second time in a row I played him and he didn't use any.
So yeah, as you guessed, got him today as Oracle prediction and I went with Graboids, worked great, in fact I killed him too quickly and was only able to use 4 Granite Skins, not getting the 500 HP EM
Best is most likely to use less Graboids, 1-2 should be enough in combination with Mitosis, giving you time to draw the 6 Skins.
Heal is also nice, it's main use being to secure the EM im case you don't win by deckout (he always has a Morning Glory dealing dam) but obviously it can also be used if HP's are running low.
With this in mind, I think the following accomplishes both goals: get a 500 HP EM while not having to wait 40+turns once his hand/field is full.
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6rn 6rn 6rn 6rn 6rn 6rn 778 778 778 778 778 778 778 778 778 778 778 778 778 77c 77c 77c 77c 77c 77e 77g 77g 77k 77k 77k 77k 77k 77k 7ai 7ai 7ap 7q0 7q0 7q0 7q0 7q0 7q0 7q4 7q4 7q4 7q4 7q8 7q8 8pn
Added a 5th Shield too, simply because not drawing one is pretty much the only way to lose.