Yeah works very nice until... Jaina or Nemesis dies. Nemesis is extremally fragile 1 turn (4-2-7 with no increase from skill or +1/+1) when you play her so for snowballing Nemesis i strongly recommend shock + double dress up. In addition i recommend rolling trance spells to recycle your crux duo.
I tried both Nemesis setup with shock + dress up and Jaina + something with shock + awakening. I prefer using that combo as a def ramp for the rest of the deck and strong start rather than win condition. Too fragile for my taste.
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