All Slivers have ", Sacrifice this permanent: This permanent deals 2 damage to any target."

Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, you gain that much life.

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

Defender (This creature can't attack.)
First strike

Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.

: The next 1 damage that would be dealt to this creature this turn is dealt to target creature you control instead.
: The next time a source of your choice would deal damage to target creature this turn, that damage is dealt to this creature instead.

Counter target spell unless its controller pays .

Flying, vigilance

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

Change the target of target spell that targets only a player. The new target must be a player.

Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, it deals that much damage to target opponent or planeswalker.

Choose two target creatures controlled by the same player. Exile one of those creatures and put two +1/+1 counters on the other.

Enchant creature
When enchanted creature attacks, return it and this Aura to their owners' hands at end of combat.

As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Target land becomes a 2/2 creature that's still a land. (This effect lasts indefinitely.)

Destroy target tapped creature.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Fanning the Flames deals X damage to any target.

, Tap an untapped creature you control: You gain 2 life. Activate only as a sorcery.

Defender
When this creature enters, draw a card.

This creature can't attack unless defending player controls an Island.

Tap up to three target creatures without flying.

Whenever a creature blocks, this enchantment deals 1 damage to that creature's controller.

All Slivers have "Pay 2 life: Return this permanent to its owner's hand."

Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Prevent all combat damage that would be dealt this turn.

Distribute two +1/+1 counters among one or two target creatures.

Wall creatures can attack as though they didn't have defender.

Whenever this creature is dealt damage, it deals that much damage to target opponent or planeswalker.

Flying
When this creature enters, you lose 2 life.

When a player casts a spell, sacrifice this enchantment and counter that spell.

Prevent the next X damage that would be dealt to target creature this turn. For each 1 damage prevented this way, put a +1/+1 counter on that creature.

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

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

Untap target creature you don't control. That creature blocks this turn if able.
Draw a card.

First strike

Enchant creature
Enchanted creature gets -3/-0.

This creature enters with two +1/+1 counters on it.
, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature.
Remove a +1/+1 counter from this creature: You gain 2 life.