I've asked myself, "what would be the nuttiest opener?"; imho attacking with a 4/4 on turn 2 may be a strong contender (
Lucky Prospector into
Paladin Oathbook).
This list is certainly far from being optimal, and the powerbase surely needs help, but I managed to 7-0 a Gauntlet with this list (and a good amount of luck, I must add), so I think this deck has some potential.
It's a fairly aggro/midrange deck, centered around Explorers and their interaction with Relics and Sentinels. Both relics (Oathbook and
Xenan Obelisk) impact any board that I might have, to help me either going tall or wide respectively. As a Sentinel that cares about Relics,
Monolith Guardian bridges both themes. (And is a 4 power 7/7 to boot!)
Torch,
Finest Hour,
Purify and
Vanquish are my interaction/removal cards. Speaking of Purify, the deck is probably weak to Silence effects; beware any Time and/or Justice decks you face with it. And that's all my limited experience let me talk about this list; but the deck is fun, so there's that.