I've got a few deck ideas you could try.
An Aether Light Deckout Stall Deck - this will depend on how many deflags he runs.
An Aether Air - CC heavy deck - you'll need shields to protect you from the weapon
A Dark Times Deck - a blend of Ghostmare and Quanta Denial might be golden - or might fail hard
An Earth Darkness Deck - EQ, Devourer, Gargoyle, Liquid Shadow (Kill Phoenix & Buffs Gargoyle)
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A Dark Entropy Deck:
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Maxwell's and Antimatter to crush his creatures and hopefully enough damage to win the game.
It could probably use a steal or two - just not sure where to fit them.