Counter target spell unless its controller pays .

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard.
Flashback

Flash
When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.
: Add or to your mana pool.

Darkslick Shores enters the battlefield tapped unless you control two or fewer other lands.
: Add or to your mana pool.

Galvanic Blast deals 2 damage to target creature or player.
Metalcraft - Galvanic Blast deals 4 damage to that creature or player instead if you control three or more artifacts.

Destroy target nonblack creature.

Draw two cards, then discard a card at random.
Flashback

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
: Add or to your mana pool.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.
: Add or to your mana pool.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Choose one - Slagstorm deals 3 damage to each creature; or Slagstorm deals 3 damage to each player.

Sorin's Vengeance deals 10 damage to target player and you gain 10 life.

Flying
: Olivia Voldaren deals 1 damage to another target creature. That creature becomes a Vampire in addition to its other types. Put a +1/+1 counter on Olivia Voldaren.
: Gain control of target Vampire for as long as you control Olivia Voldaren.

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Target opponent sacrifices a creature. You gain life equal to that creature's toughness.

Living weapon
Equipped creature gets +4/+4 and has vigilance and lifelink.
: Return Batterskull to its owner's hand.
Equip

Destroy target nonartifact creature.

: Add to your mana pool.
, : Stensia Bloodhall deals 2 damage to target player.

Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands.
: Add or to your mana pool.

: Put a charge counter on Ratchet Bomb.
, Sacrifice Ratchet Bomb : Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Ratchet Bomb.

Red Sun's Zenith deals X damage to target creature or player. If a creature dealt damage this way would die this turn, exile it instead. Shuffle Red Sun's Zenith into its owner's library.

Counter target noncreature spell.

You may have Phantasmal Image enter the battlefield as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it gains "When this creature becomes the target of a spell or ability, sacrifice it."

Deathtouch, lifelink
When Wurmcoil Engine dies, put a 3/3 colorless Wurm artifact creature token with deathtouch and a 3/3 colorless Wurm artifact creature token with lifelink onto the battlefield.

: Change a target of target spell or ability to Spellskite. ( may be paid for with either or 2 life.)