There's nothing really close in power level to Mulldrifter, which has the added bonus of keeping you the most open.
Ghostly Flicker might have a higher upside (and I'm not convinced it does) but it has a much lower floor. At this point I want to see what's coming from the right and adjust to...
I'll be bringing my cube up anyway, hoping to get a draft in on Saturday afternoon/evening.
If you haven't been to an Axion event before, you're in for a treat. They're where I usually play and they're always excellent.
Whilst we're waiting for someone to show off their own cube, I've always been intrigued by the Eldrazi Domain cube so I made a pack from that:
Windswept Heath
Draining Whelk
Crystal Shard
Cartel Aristocrat
Supreme Verdict
Reckless Abandon
Bayou
Urban Evolution
Furnace Celebration
Tribal Flames...