Rat Dredger (Modern)

Commune with the Gods to bin your rats and get Bloodbond March, or another rat if you've already got a Bloodbond March. Mulch for the lands to get up to Bloodbond March, and to bin more rats. Gaea's Blessing is for if you accidentally bin all of your copies Bloodbond March, and so you don't mill yourself out, but mostly to recur your sorceries. Right so what's the point? Well, you mill as many rats into your graveyard as you possibly can, then play one rat and have Bloodbond March bring every single one of them back to the battlefield. If you're up against a deck with board wipes, keep one rat back. If they've also got discard / hand attack, hold up two. Otherwise just keep playing rats and keep playing rats and keep playing rats, relentlessly. That said, you straight up die to Extirpate and Surgical Extraction. Sideboard is Pithing Needle to counteract the inevitable Relic of Progenitus and or Tormod's Crypt, Killing Wave to try to put a dent in affinity, Nyx Weaver is if you need to mill harder, and Doubling Chant is if your opponent is also playing a slower more casual deck, and you want to style on them a little bit.
If you want more power and have more money, try Life from the Loam.
If you want more "lol" and have more money, try Mesmeric Orb.