Synchronous Sliver
About this card
Synchronous Sliver is a creature card in Magic: The Gathering with mana value 5 (color identity: blue). Printed in Planar Chaos (2007). Legal in Commander, Modern, Legacy, Vintage and Pauper. Cardmarket price: €0.18.
Synchronous Sliver 

"With a twitch of its muscles, its timeline forks. Then, just as quickly, its two selves reintegrate. Causality, strangely, seems not to mind." —Rukarumel, field journal
Name in each language
Legality
Rulings
2013-07-01
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.
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.