The first sliver burst against the cave wall, and others piled in behind to deepen the new tunnel.

Acidic Sliver

All Slivers have "{2}, Sacrifice this permanent: This permanent deals 2 damage to any target."

Tempest Remastered

All Slivers have "{2}, Sacrifice this permanent: This permanent deals 2 damage to target creature or player."

Premium Deck Series: Slivers

Stronghold

Each Sliver gains "o2, Sacrifice this creature: This creature deals 2 damage to target creature or player."

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.

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.