Tempest

Casting Cost: 

Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of his or her library into his or her graveyard.

Casting Cost: 

Any player may play creature cards with converted mana cost 3 or less without paying their mana cost and as though they had flash.

Casting Cost: 

You may choose not to untap Coffin Queen during your untap step.

, : Put target creature card from a graveyard onto the battlefield under your control. When Coffin Queen becomes untapped or you lose control of Coffin Queen, exile that creature.

Casting Cost: 

Buyback  (You may pay an additional 2 as you cast this spell. If you do, put this card into your hand as it resolves.)

Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

Casting Cost: 

, : Name a card. Reveal a card at random from your hand. If it's the named card, Cursed Scroll deals 2 damage to target creature or player.

Casting Cost: 

Tap an untapped creature you control: Untap target basic land.

Casting Cost: 

Green spells you cast cost  less to cast.

Casting Cost: 

, : Target player puts the top two cards of his or her library into his or her graveyard. If both cards share a color, repeat this process.

Casting Cost: 

You may choose not to untap Helm of Possession during your untap step.

, , Sacrifice a creature: Gain control of target creature for as long as you control Helm of Possession and Helm of Possession remains tapped.

Casting Cost: 

All Sliver creatures have trample.

Casting Cost: 

All creatures lose all abilities and have base power and toughness 1/1.

Casting Cost: 

Search your library for three cards and reveal them. Target opponent chooses one. Put that card into your hand and the rest into your graveyard. Then shuffle your library.

Casting Cost: 

Black spells you cast cost  less to cast.

Casting Cost: 

Each player exiles all creature cards from his or her graveyard, then sacrifices all creatures he or she controls, then puts all cards he or she exiled this way onto the battlefield.