You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.

Offspring {B} (You may pay an additional {B} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) Flying At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.

Menace Greven gets +X/+0, where X is the amount of life you've lost this turn. Whenever Greven attacks, you may sacrifice another creature. If you do, you draw cards equal to that creature's power and you lose life equal to that creature's toughness.

Flying, trample Skip your draw step. Whenever you play a land or cast a spell, you draw a card and you lose 1 life.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays {3}.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Flying Pay 1 life: Regenerate this creature.

Permanents you control have "Ward—Sacrifice a permanent." Each artifact card in your graveyard has unearth {1}{B}{R}. ({1}{B}{R}: Return the card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn.

Untap all creatures and gain control of them until end of turn. They gain haste until end of turn.

Gain control of target creature until end of turn. Untap it. It gains trample and haste until end of turn.

Each opponent loses X life. You gain life equal to the life lost this way.

{R/P}: This creature gets +1/+0 until end of turn. ({R/P} can be paid with either {R} or 2 life.)

Pay 3 life: Put a +1/+1 counter on this creature.

Banefire deals X damage to any target. If X is 5 or more, this spell can't be countered and the damage can't be prevented.

Crackle with Power deals five times X damage to each of up to X targets.

Surge {X}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.) Fall of the Titans deals X damage to each of up to two targets.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Fanning the Flames deals X damage to any target.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

Whenever an opponent casts a spell, Kaervek deals damage equal to that spell's mana value to any target.

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

{T}: Add one mana of any color in your commander's color identity.

This land enters tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

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

As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {R}.

This land enters tapped unless you control two or more other lands. {T}: Add {B} or {R}.

({T}: Add {R}.)

This land enters tapped unless a player has 13 or less life. {T}: Add {B} or {R}.

{1}, {T}: Add {B}{R}.

({T}: Add {B} or {R}.) This land enters tapped unless you control two or more basic lands.

{T}: Add {C}. {T}: Add {B} or {R}. This land deals 1 damage to you.

({T}: Add {B}.)

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {B} or {R}.

{T}: Add one mana of any color in your commander's color identity.

{B}, Pay 1 life: Add one mana of any color.

As an additional cost to cast this spell, sacrifice a creature. Add X mana in any combination of {B} and/or {R}, where X is the sacrificed creature's mana value.

Menace As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost {B} less to cast if you paid life this way. This effect reduces only the amount of black mana you pay. Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace until end of turn.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) {T}, Pay 2 life: Add one mana of any color.

When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

Two target players exchange life totals. You create an X/X colorless Horror artifact creature token, where X is the difference between those players' life totals.

Exile all creature cards from target player's graveyard in a face-down pile, shuffle that pile, then manifest those cards. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

When this creature dies, return target instant or sorcery card from your graveyard to your hand.

Whenever an instant or sorcery spell you control that targets only a single creature deals damage to that creature, Imodane deals that much damage to each opponent.

Flying Whenever this creature attacks or dies, choose one or more. Each mode must target a different player. • Target opponent draws three cards, then discards three cards at random. • Target opponent sacrifices a nontoken artifact of their choice. • This creature deals damage to target opponent equal to the number of cards in their hand.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Target creature gets -X/-X until end of turn. You gain X life.

Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.) Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

As an additional cost to cast this spell, pay X life. Fire Covenant deals X damage divided as you choose among any number of target creatures.

This spell costs {1} more to cast for each target beyond the first. Fireball deals X damage divided evenly, rounded down, among any number of targets.

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

{X}{B/P}: Remove up to X counters from target permanent. For each counter removed this way, this creature gets +1/+0 until end of turn. ({B/P} can be paid with either {B} or 2 life.)

As an additional cost to cast this spell, you may exile any number of black cards from your hand. This spell costs {2} less to cast for each card exiled this way. March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life.

Ravaging Blaze deals X damage to target creature. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, Ravaging Blaze also deals X damage to that creature's controller.

Rolling Thunder deals X damage divided as you choose among any number of targets.

Choose one — • Destroy target artifact. • Change the target of target spell or ability with a single target. • One or two target creatures can't block this turn.