Squee had been disemboweled many times before, but never by something so stunningly beautiful.

Gemhide Sliver

All Slivers have "{T}: Add one mana of any color."

The List

"The land is weary. Even Skyshroud is depleted. We must find another source of mana—one that is growing despite our withering world."
—Freyalise

Commander Masters

Secret Lair Drop

Time Spiral Remastered

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.