Circle of Protection: Green

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

Ambition's Cost

You draw three cards and you lose 3 life.

Urza's Armor

If a source would deal damage to you, prevent 1 of that damage.

Mind Rot

Plains

Severed Legion

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Gravedigger

When this creature enters, you may return target creature card from your graveyard to your hand.

Swamp

Nausea

All creatures get -1/-1 until end of turn.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Circle of Protection: Red

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

Sacred Ground

Whenever a spell or ability an opponent controls causes a land to be put into your graveyard from the battlefield, return that card to the battlefield.

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Circle of Protection: Blue

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

Ravenous Rats

When this creature enters, target opponent discards a card.

Zombify

Return target creature card from your graveyard to the battlefield.

Island

Rain of Blades

Rain of Blades deals 1 damage to each attacking creature.

Gluttonous Zombie

Sanctimony

Whenever an opponent taps a Mountain for mana, you may gain 1 life.

Intrepid Hero

{T}: Destroy target creature with power 4 or greater.

Angelic Page

Flying
{T}: Target attacking or blocking creature gets +1/+1 until end of turn.

Slay

Destroy target green creature. It can't be regenerated.
Draw a card.

Mana Leak

Counter target spell unless its controller pays {3}.

Remove Soul

Concentrate

Circle of Protection: White

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

Suntail Hawk

Lord of the Undead

Other Zombie creatures get +1/+1.
{1}{B}, {T}: Return target Zombie card from your graveyard to your hand.