Just to Specify, the two MAIN combo cards are $1, just to avoid confusion.

This pauper combo is all about control. To win with this deck, don't let any blockers stay on the battlefield unless you have a Distortion Strike. Ponder and Preordain to help find combos. Life Lands to help boost your life out of range of Burn Decks. Wall of Tears for blocking creatures and slowing them down at the same time. If you can play Mutagenic Growth instead of pumping Immolating Souleater, do it.

In your sideboard, Electrickery to stop annoying token combos or dealing with a lot of 1/1's. Hydroblast for burn and Pyroblast for counterspells, combo finders like Ponder, or literally any other Pauper staple, being most of them are blue.

If you get frustrated with the deck, don't worry, it's hard to get used to and you'll lose the first couple of times. And remember, killing yourself with Phyrexian Mana isn't legal. Think of it like mana, if you don't have any lands to tap, you can't just tap an invisible one. If you're left with 1 or 2 life, you don't have the resources to trigger the ability. This is used to stop decks that would abuse cards like Phyrexian Unlife or Angel's Grace.

On a Perfect Day:

T1: Radiant Fountain OR Island

T2: Mountain + Immolating Souleater

T3: Play Assault Strobe on Immolating Souleater, pump him up 9 times to put you at 2 life (4 if you played Kabira Crossroads or Radiant Fountain), if they have blockers Lightning Bolt or Distortion Strike (not necessary), then swing for game.