Beat him today quite easily with the deck below. Struggled with quanta (only had 3 pillars for the first few turns) and it also had a single SoG which I didn't even play (so I've dropped it out for a fully unupped deck). The only option without lobo's would be to replace them with another pillar so you can get the phase dragons out quicker or maybe ice bolts to kill the physalias.
Notes:
Don't waste quanta lobo'ing every creature, you only need to take out the physalia's and maybe the puffer fish if you are waiting to draw the dimensional shields
Use the purifys sparingly until you can get the shields up (at which point it is only un-lobo'd physalias, deadly poison and ice lance which can touch you)
Shard of Sacrifice might be good to help stall and Shards of Wisdom to take him down quicker if you have picked up the odd shard from the arena (I'd swap SoSa for a purify and SoW for a phase dragon)
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Obviously this is pretty much what Drolly said but at least this gives a completely unupped option (with the deck code). Unupped and no rares version would be as below, but I haven't tested it (I believe Scorpio only has 3 Physalias so as long as you can take out one or two you should be ok).
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5i8 5i8 5i8 5ia 5ia 5ia 5ia 5ia 5ia 61o 61o 61o 61o 61o 61o 61o 61o 61o 61o 61o 61o 61t 61t 61t 61t 61t 61t 61v 61v 61v 61v 61v 8pp