This card was printed in the following sets:

Card Name: Symbol Set Block
Necrotic Sliver Planar Chaos (Uncommon) Planar Chaos Time Spiral Block
Necrotic Sliver Time Spiral Remastered (Uncommon) Time Spiral Remastered
Necrotic Sliver Adventures in the Forgotten Realms Commander (Uncommon) Adventures in the Forgotten Realms Commander
Necrotic Sliver Premium Deck Series: Slivers (Uncommon) Premium Deck Series: Slivers Miscellaneous

This card has restrictions in the following formats:

Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander Legal
x For more information regarding each format and play style modifications, visit the Banned / Restricted Lists for DCI-Sanctioned Tournaments page on the Magic: The Gathering website.

Gatherer works better in the Companion app!