15 Swamp
4 Swarmyard
1 Urborg, Tomb of Yawgmoth
4 Call to the Netherworld
3 Contaminated Ground
4 Drainpipe Vermin
1 Filth
3 Funeral Charm
4 Pack Rat
1 Patriarch's Bidding
4 Ravenous Rats
4 Rotting Rats
3 Stronghold Rats
4 Swarm of Rats
3 Underworld Connections
Sideboard:
1 Crypt Rats
4 Drainpipe Vermin
3 Evil Presence
1 Marrow-Gnawer
1 Ogre Slumlord
1 Plague of Vermin
4 Zodiac Rat