Note: As CMC is highly misleading with this deck, the custom categories indicate the "realistic" costs.

Scourge, the last set of the old border era, was not especially coherent. To quote a certain reviewer, "[t]he development team was replaced by 1920s German Dadaists, who attempted to destroy culture through the lens of Magic cards." Their chosen approach was to create a dragon set with four dragons in it, and a focus on CMC matters as a mechanic. There are three cards which are interesting for Pauper: Erratic Explosion, Torrent of Fire and cube all-star Rush of Knowledge. Just having the chance to deal 7-8 damage for 2R or to draw 7-8 cards at any cost is absurd, but while these cards have a high ceiling, they also have a low floor.

I've tried various approaches in the past. First, you could just try jamming the CMC matters cards into a ramp-out-fatties deck (e. g. Tron), but they're really just win-more cards in those decks; if you're resolving your Ulamog's Crushers, you're already in good shape. You could also try to slot them into Affinity lists, since Affinity cards have high CMC but are cheap to cast. Rush of Knowledge does pop up as a one- or two-of, but the cards are kinda at odds with the deck's game plan. You're trying to win quickly, not cast five-mana sorceries, and Erratic Explosion is way too unreliable when your deck is full of Ornithopters.

So, for this deck, I am instead experimenting with Time Spiral's Suspend mechanic. Errant Ephemeron is an absurdly strong card on its own. Viscerid Deepwalker and Keldon Halberdier act as filler. The latter is better in a vacuum, but it's way too fragile and it's too easy to get blown out by Death Spark, Electrickery, Gut Shot, Icatian Javelineers, Holy Light... the risk is too high. At least you need a Bolt to kill Deepwalker and it can trade with an Angler. Anyway, the Suspend cards have costs from 5 to 7, which is a healthy amount. Spire Golem might seem strange in a two-colour deck, but we want to run Evolving Wilds + Basics for fixing anyway (because of Brainstorm) and we can usually get it down turn 3 or so via Izzet Signet. The rest of the deck is support and draw manipulation.

The sideboard is a little all over the place, but it's heavy on cheap counter-(counter-)magic. Against a control deck, everything comes down to whether your Ephemeron sticks. You'll have all your mana available when it comes off Suspend - you just need to have the spells to win the resulting counter war.

Feedback would be very welcome.