Countersliver

Winged Sliver           4
Crystalline Sliver      4
Muscle Sliver           4
Acidic Sliver           3
Hibernation Sliver      2
Squee, Goblin Nabob     1
Survival of the Fittest 4
Swords to Plowshares    2
Force of Will           4
Counterspell            4
Duress                  3
Disenchant              2
Tropical Island         3
Volcanic Island         1
Bayou                   1
Gaea's Cradle           1
Island                  6
Forest                  5
Volrath's Stronghold    1
Swamp                   2
Undiscovered Paradise   2
Mountain                1