"It would take another apocalypse to stop the slivers now."
—Riptide Project researcher

Root Sliver

This spell can't be countered.
Sliver spells can't be countered.

Secret Lair Drop

Salvat 2005

Legions

Root Sliver can't be countered.
Sliver spells can't be countered.

The first ability applies when this card is not on the battlefield. The second ability applies when this card is on the battlefield.

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.