Two-Headed Sliver

All Sliver creatures have menace. (They can't be blocked except by two or more creatures.)

Brood Sliver

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Virulent Sliver

All Sliver creatures have poisonous 1. (Whenever a Sliver deals combat damage to a player, that player gets a poison counter. A player with ten or more poison counters loses the game.)

Sinew Sliver

Shifting Sliver

Slivers can't be blocked except by Slivers.

Predatory Sliver

Lancer Sliver

Sliver creatures you control have first strike.

Groundshaker Sliver

Sliver creatures you control have trample. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

Sliver

Might Sliver

Battering Sliver

Pulmonic Sliver

All Sliver creatures have flying.
All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."

Winged Sliver

Watcher Sliver

Muscle Sliver

Bonesplitter Sliver

Crystalline Sliver

All Slivers have shroud. (They can't be the targets of spells or abilities.)

Fury Sliver

Bonescythe Sliver

Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)