Masters of adaptation, galeriders serve multiple purposes useful to the hive. When they're not patrolling their territories, their majestic wings serve to circulate cool air through the vast hive chambers.

Galerider Sliver

Sliver creatures you control have flying.

"I wish we'd never visited that accursed hive. Even here, surrounded by nothing but clouds, I swear I can still hear the horrible clicking, slithering sounds."
—Monihan, aerial surveyor

Commander Masters

Secret Lair Drop

Magic 2014

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 you change the creature type of a Sliver you control 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 you control.