Glimpse the Death Pit

Here's a Glimpse the Possibilities combo deck, updated for Echoes of Eternity. A full set of market spells and merchants allows you to get Glimpse + Workshop Forge fairly consistently, while dudes + Obelisk + burn gives you a decent Plan B if something goes wrong.

As mentioned, the main idea is to play Workshop Forge followed by Glimpse. Having Trickster Mage out means the only card you actually have to pay for is Obelisk, while Sanctum and Packbeast can help against fizzling. You play a few units, play a few power, then grab Death Pit and kill your opponent with those freshly-played units.

Update: Swapped Disjunction from the market for Ark of Sol. The ramp has been useful, and cutting a 2-drop from the market makes comboing faster.