Toxin Sliver | Magic: The Gathering
Formats Toxin Sliver is Legal in
Official Oracle Text for Toxin Sliver
Official Rulings for Toxin Sliver
7/1/2013 : If the creature type of a Sliver changes so it’s no longer a Sliver, it will no longer be affected by its own ability. Its ability will continue to affect other Sliver creatures.