Kolaghan's Command

Choose two — • Return target creature card from your graveyard to your hand. • Target player discards a card. • Destroy target artifact. • Kolaghan's Command deals 2 damage to target creature or player.

Virulent Plague

Creature tokens get -2/-2.

Dark Petition

Search your library for a card and put that card into your hand. Then shuffle your library. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, add {B}{B}{B} to your mana pool.

Fiery Impulse

Fiery Impulse deals 2 damage to target creature. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, Fiery Impulse deals 3 damage to that creature instead.

Languish

All creatures get -4/-4 until end of turn.

Ultimate Price

Destroy target monocolored creature.

Battlefield Forge

{T}: Add {1} to your mana pool. {T}: Add {R} or {W} to your mana pool. Battlefield Forge deals 1 damage to you.

Caves of Koilos

{T}: Add {1} to your mana pool. {T}: Add {W} or {B} to your mana pool. Caves of Koilos deals 1 damage to you.

Read the Bones

Scry 2, then draw two cards. You lose 2 life. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Ob Nixilis Reignited

Radiant Flames

Ruinous Path

Shambling Vent

Smoldering Marsh

Transgress the Mind

Chandra, Flamecaller

Eldrazi Displacer

Goblin Dark-Dwellers

Grasp of Darkness

Kalitas, Traitor of Ghet

Linvala, the Preserver

Thought-Knot Seer

Anguished Unmaking

Declaration in Stone

Foreboding Ruins

Sorin, Grim Nemesis

Evolving Wilds

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Plains

({T}: Add {W}.)

Swamp

({T}: Add {B}.)

Mountain

({T}: Add {R}.)