Gurmag Angler

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Temur Battle Rage

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.) Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Stubborn Denial

Counter target noncreature spell unless its controller pays {1}. Ferocious — If you control a creature with power 4 or greater, counter that spell instead.

Street Wraith

Swampwalk Cycling—Pay 2 life. (Pay 2 life, Discard this card: Draw a card.)

Surgical Extraction

({B/P} can be paid with either {B} or 2 life.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles his or her library.

Mutagenic Growth

({G/P} can be paid with either {G} or 2 life.) Target creature gets +2/+2 until end of turn.

Serum Visions

Draw a card. Scry 2 (Look at the top two cards of your library. Put any number of them on the bottom of your library and the rest on top of it in any order.)

Rakdos Charm

Choose one — Exile all cards from target player's graveyard; or destroy target artifact; or each creature deals 1 damage to its controller.

Inquisition of Kozilek

Target player reveals his or her hand. You choose a nonland card from it with converted mana cost 3 or less. That player discards that card.

Kiln Fiend

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

Manamorphose

Add two mana in any combination of colors to your mana pool. Draw a card.

Thoughtseize

Target player reveals his or her hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Lightning Bolt

Lightning Bolt does 3 damage to one target.

Death's Shadow

Death's Shadow gets -X/-X, where X is your life total.

Bloodstained Mire

Polluted Delta

Scalding Tarn

Steam Vents

Watery Grave

Collective Brutality

Ceremonious Rejection

Fatal Push

By Force

Blood Crypt

({T}: Add {B} or {R}.) As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Opt

Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) Draw a card.

Swamp

({T}: Add {B}.)