Firewake Sliver
Creature — Sliver
All Sliver creatures have haste.
All Slivers have ", Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn."
"They are here, and they are hungry. And what they do not eat, they burn. Yavimaya is lost. We must leave now for Skyshroud." —Edahlis, greenseeker
Anthony S. Waters
Time Spiral (TSP)
• #238Rulings
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.
(wotc • 2013-07-01)
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.
(wotc • 2013-07-01)
Rulings
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.
(wotc • 2013-07-01)
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.
(wotc • 2013-07-01)