Shifting Sliver

Slivers can't be blocked except by Slivers.

Root Sliver

This spell can't be countered.
Sliver spells can't be countered.

Malice

Destroy target nonblack creature. It can't be regenerated.

Spite

Spite // Malice

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.)

Sliver Hivelord

Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.)

Creatures target player controls get +1/+1 until end of turn.

Night

Target creature gets -1/-1 until end of turn.

Night // Day

Island

Return

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Exile target card from a graveyard. Create a 2/2 black Zombie creature token.

Never

Never // Return

Ghostflame Sliver

Thorncaster Sliver

Sliver creatures you control have "Whenever this creature attacks, it deals 1 damage to any target."

Battle Sliver

Plains

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.)

Mountain

Galerider Sliver

Sliver creatures you control have flying.

Clot Sliver

All Slivers have "{2}: Regenerate this permanent."

Hive Stirrings

Create two 1/1 colorless Sliver creature tokens.

Sentinel Sliver

Sliver creatures you control have vigilance. (Attacking doesn't cause them to tap.)

Mindwhip Sliver

All Slivers have "{2}, Sacrifice this permanent: Target player discards a card at random. Activate only as a sorcery."

Bonescythe Sliver

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

Blur Sliver

Sliver creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Door of Destinies

As Door of Destinies enters, choose a creature type.
Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.
Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.

Swamp

Suffering

Pain

Pain // Suffering

Striking Sliver

Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)

Synchronous Sliver

Hunter Sliver

All Sliver creatures have provoke. (Whenever a Sliver attacks, its controller may have target creature defending player controls untap and block it if able.)

Spectral Sliver

All Sliver creatures have "{2}: This creature gets +1/+1 until end of turn."

Battery

Create a 3/3 green Elephant creature token.

Assault

Assault // Battery

Steelform Sliver

Ring of Three Wishes

Ring of Three Wishes enters with three wish counters on it.
{5}, {T}, Remove a wish counter from Ring of Three Wishes: Search your library for a card, put that card into your hand, then shuffle.

Forest

Metallic Sliver

Rubble

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Up to three target lands don't untap during their controller's next untap step.