As the time streams grew more and more unstable, Dominaria's creatures struggled to adapt. The intense pressures led to many dead ends but also to lethal new forms that appeared as suddenly as the ashen rains.
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.
01-07-2013
wotc
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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.