I got a 500HP EM with this deck
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55p 55p 55p 55p 55p 55p 58o 58o 58o 58o 58o 58o 58o 58o 58o 58v 58v 590 590 590 590 594 594 594 594 594 594 595 595 595 595 595 5mq 5mq 5mq 5t2 5t2 7k6 7k6 7k6 7k6 8pl
This thing isn't too bad.
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58o 58o 58o 58o 594 594 594 594 594 594 5mq 5mq 5mq 749 749 749 749 749 749 778 778 778 778 778 778 77f 77f 77f 77l 77l 77l 77l 77l 77l 7k6 7k6 7k6 7k6 7k6 7la 8pl
I just went for deckout. It almost worked, but needs either more cards/Eternity for when Neptune doesn't know what to do with his CC and starts drawing only one card at a time.
My attempt at 500 HP EM
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58u 77c 77c 77c 77k 77k 77k 77k 77k 77k 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 78q 7k2 7k2 7k2 7k2 7k2 7k2 7k3 7km 7km 7km 7km 7km 7km 7q0 7q0 7q0 7q4 7q8 8pq
it works great except for those rare times Neptune gets a rushy hand