can't say that I've ever seen a Bonfire of the Damned cast in Legacy, much less in a deck with all three elder Eldrazi, Trinket Mage, and Primeval Titan, but here we are. 12post is a deck that takes on the unique challenge of assembling Cloudposts in a format of Wastelands, but thanks to many strong enablers, it actually works. Once it starts generating absurd amounts of mana, it hard-casts Eldrazi, and apparently Bonfires.
Cloudpost, Glimmerpost, and Vesuva form the core of the deck, and the rest of the cards are just there to enable and maximize them. Sensei's Divining Top is the top card for the cantrip slot, mainly because it only costs colorless mana to start spinning. This deck can sometimes need to keep an all-colorless hand, and Top fits right in to those. Top also sets up Bonfire of the Damned, with a little help from Brainstorm, giving the deck a relevant removal spell that's decent early and can end the game late.
Trinket Mage is mainly there to find Top, although it can pick up a Pithing Needle, Candelabra of Tawnos, or Expedition Map if the circumstances demand it. Crop Rotation is another tutor, one that comes with quite a bit of risk but gives the deck plenty of explosiveness as a reward. After Rotation, Primeval Titan is actually the next tutoring option, all the way at six mana. Titan is in a strange spot; to cast it, the deck has to be working to some degree, but once cast, Titan still provides a ton of valuable ramping. You can also fetch multiple Glimmerposts with Primeval Titan, making it a relevant play at any point in the game.
All this mana has to go somewhere, and that somewhere is the Eldrazi. Ulamog, Kozilek, and Emrakul all make an appearance, and thanks to Eye of Ugin (which can be fetched any number of ways), you often get to choose which Eldrazi you need. Show and Tell is a way to cheat in the Eldrazi as well, although putting in a Primeval Titan is honestly not the worst.
The sideboard for the deck is pretty sweet, too, with the full twelve counterspells against combo, as well as Sneak Attack against control and a lone Glacial Chasm against aggro.
I've never played this deck in a tournament, but I imagine that landing a fast Eldrazi is very satisfying, and there's nothing better than Bonfireing someone out (or worse than getting Bonfired out, as I can also attest to).
Jeremiah Rudolph's 12Post
Legacy – 11th Place, StarCityGames.com Open
Luis Scott-Vargas plays, writes, and makes videos about Magic. He has played on the Pro Tour for almost a decade, and between that and producing content for ChannelFireball, often has his hands full (of cards).