: Put a -1/-1 counter on target creature.

Blue spells you cast cost less to cast.

: Add .

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

White spells you cast cost less to cast.

: The next time a creature of your choice with shadow would deal damage to you this turn, prevent that damage.

: Choose a creature card name. Reveal the top four cards of your library and put all of them with that name into your hand. Put the rest into your graveyard.

This creature gets -1/-1 for each other creature on the battlefield.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Protection from black
Shadow (This creature can block or be blocked by only creatures with shadow.)

Red spells cost more to cast.

: Target creature you control gets +1/+0 and gains flying until end of turn. Destroy that creature at the beginning of the next end step.

, : Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.

Destroy target artifact.

All Sliver creatures get +1/+1.

Shadow (This creature can block or be blocked by only creatures with shadow.)
When this creature leaves the battlefield, draw a card.

Sacrifice a creature: This enchantment deals 1 damage to any target.

Target blocking creature gets +4/+4 until end of turn.
Draw a card.

Target creature loses shadow until end of turn.
Draw a card.

Prevent all combat damage that would be dealt this turn. You gain 1 life for each attacking creature.

Return up to X target cards from your graveyard to your hand, where X is the number of black permanents target opponent controls as you cast this spell.

Red spells you cast cost less to cast.

: Add .
: Add or .

All Sliver creatures have haste.

, : 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.
At the beginning of the upkeep of enchanted creature's controller, this creature deals 1 damage to that player.

Defender (This creature can't attack.)
This creature can block creatures with shadow as though it had shadow.

Flying

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

All Sliver creatures have flying.

: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Return target creature card from your graveyard to your hand.

Cast this spell only before the combat damage step.
Target attacking or blocking creature gets +4/+0 until end of turn. Destroy that creature at the beginning of the next end step.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever a creature with shadow dies, put a +1/+1 counter on this creature.

Other Elf creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)
Other Elves have shroud. (They can't be the targets of spells or abilities.)

Rolling Thunder deals X damage divided as you choose among any number of targets.

, : 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.
: Regenerate enchanted creature.