19 Swamp
2 Bad Moon
2 Bubbling Muck
2 Dark Ritual
1 Marrow-Gnawer
3 Murder
2 Ogre Slumlord
2 Pack Rat
4 Piper of the Swarm
10 Rat Colony
2 Ratcatcher
3 Return from Extinction
2 Swarm of Rats
4 Typhoid Rats
Sideboard:
1 Mortal Combat
1 Murder
1 Return from Extinction