35 Swamp
1 Chittering Witch
1 Crippling Fear
1 Crypt Rats
1 Echoing Return
1 Marrow-Gnawer
1 Ogre Slumlord
1 Pack Rat
1 Pact of the Serpent
1 Piper of the Swarm
1 Predators' Hour
23 Rat Colony
1 Ratcatcher
1 Wave of Rats
Sideboard: