Creature — Sliver 2/2, WR (2)
Uncommon
All Slivers have "{1}, Sacrifice this permanent: This permanent deals 1 damage to target creature or player."
All Slivers have "{1}, Sacrifice this permanent: Prevent the next 1 damage that would be dealt to target Sliver creature or player this turn."
Illus. Dany Orizio

2/1/2007: Note that the first ability can affect any kind of creature, but the second ability can affect only Slivers. Both abilities can affect players.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern