TETempest

Muscle Sliver

Muscle Sliver from Tempest
Muscle Sliver from Tempest

Summon - Sliver   {1}{G} (CMC:2)

All Slivers get +1/+1.

The air was filled with the cracks and snaps of flesh hardening as the new sliver joined the battle.

TE • ENRichard Kane Ferguson

™ & © 1993—1997 Wizards of the Coast

Legal in: Tempest Block,Legacy,Vintage,Commander

Oracle Text (click to copy):
View this MTG card on Gatherer 
10/4/2004
Yes, it does give the +1/+1 bonus to itself.
7/1/2013
Abilities that Slivers grant, as well as power/toughness boosts, are cumulative. However, for some abilities, like flying, having more than one instance of the ability doesn’t provide any additional benefit.
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.
Card Muscle Sliver is not on TCGPlayer.