Defender (This creature can't attack.)
This creature enters with X +1/+1 counters on it.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Target player discards a card.

As an additional cost to cast this spell, sacrifice a creature.
Return any number of target creatures you control to their owner's hand.

As an additional cost to cast this spell, sacrifice a creature.
Search your library for a card with the same name as target nontoken creature, put that card onto the battlefield, then shuffle.

: The next 1 damage that would be dealt to this creature this turn is dealt to target creature you control instead.

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.

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

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

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

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

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

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

All Slivers have ", Sacrifice this permanent: You gain 4 life."

Defender
When this creature enters, draw a card.

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

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

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

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.

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.

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

Defender (This creature can't attack.)
Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat.

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

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

: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Activated abilities of creatures cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
Enchanted creature has flying.

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.

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
Enchanted creature can't attack.

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
Enchanted creature can't block.

Whenever you cast a spell, you gain 1 life.

Whenever an opponent discards a card, this enchantment deals 2 damage to that player.

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
All creatures able to block enchanted creature do so.

At the beginning of each player's upkeep, that player discards a card at random.

Look at the top five cards of target player's library. Put any number of them on the bottom of that library in any order and the rest on top of the library in any order.