Poison Counters

 Poisonous Swamp

Creatures - 17
Swamp Mosquito x 4
Ichorclaw Myr x 4
Vault Skirge x 4
Plague Stinger x 4
Plague Myr x 2
Thrull Parasite x 2
Nim Shrieer x 1

Instants - 10
Tainted Strike x 4
Howl from Beyond x 3
Echoing Decay x 1
Altar's Reap x 1
Rush of Vitality x 1

Sorceries - 3
Sign in Blood x 3

Enchantments - 4

Snake Cult Initiation x 4

Artifacts - 4
Charcoal Diamond x 1
Whiperslk Cloak x 3

Lands - 21
Swamps x 20
Bojuka Bog x 1