15 Forest
25 Swamp
1 Aclazotz, Deepest Betrayal // Temple of the Dead
1 Atraxa's Skitterfang
1 Basilica Screecher
1 Battlefly Swarm
1 Bayou Dragonfly
1 Blech, Loafing Pest
1 Blight Keeper
1 Bloatfly Swarm
1 Bloodhunter Bat
1 Caustic Bronco
1 Caustic Wasps
1 Daggerdrome Imp
1 Darkstar Augur
1 Deep-Cavern Bat
1 Delta Bloodflies
1 Emerald Dragonfly
1 Eumidian Terrabotanist
1 Eyetwitch
1 Fog of Gnats
1 Foundry Hornet
1 Fumulus, the Infestation
1 Ghastly Gloomhunter
1 Grimclaw Bats
1 Gurmag Swiftwing
1 Gwenom, Remorseless
1 Hornet Nest
1 Hornet Queen
1 Ikra Shidiqi, the Usurper
1 Infesting Radroach
1 Kazandu Nectarpot
1 Locust Swarm
1 Malakir Familiar
1 Mask of Griselbrand
1 Maskwood Nexus
1 Moonstone Eulogist
1 Moonstone Harbinger
1 Obelisk Spider
1 Pestilent Syphoner
1 Phyrexian Battleflies
1 Plague Stinger
1 Scheming Silvertongue // Sign in Blood
1 Shelob, Child of Ungoliant
1 Shopkeeper's Bane
1 South Wind Avatar
1 Spider-Ham, Peter Porker
1 Spiders-Man, Heroic Horde
1 Sporeweb Weaver
1 Starlit Soothsayer
1 Starscape Cleric
1 Stirge
1 Sultai Flayer
1 Swamp Mosquito
1 Teacher's Pest
1 Twitching Doll
1 Umezawa's Jitte
1 Vampire Bats
1 Vault Skirge
1 Well of Lost Dreams
1 Xantid Swarm
1 Yavimaya Gnats
Sideboard:
1 Broodspinner
1 Copper Longlegs
1 Pest Mascot
1 Shelob, Dread Weaver