Add either a second eternity or a single RT, to prevent deckout in the situation where your only current eternity is the last card in the deck. A second PA for PC-heavy opponents when your first PA is the last card in the deck is also an option, but that's even more of an outside case, so it might not be worthwhile (though the second PA could be used on your stack of pillars against earthquakes/PC, so it might be helpful anyways).
Other than that, it looks good and seems like it'd do fairly well in unupped PvP. I'm curious what TTW you can get out of AI3 also.