Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Whenever you gain life, target opponent loses that much life.

Offspring {2}{B} (You may pay an additional {2}{B} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) Flying This creature can't block. Whenever you gain life, each opponent loses 1 life.

Flying, vigilance At the beginning of your end step, if you gained or lost life this turn, target opponent loses 3 life unless they sacrifice a nonland permanent of their choice or discard a card.

Flying Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

As long as you've lost life this turn, this creature has flying and vigilance. Whenever you gain life, put a +1/+1 counter on this creature. When this creature dies, put its counters on target creature you control.

Flying Whenever another creature you control enters, you gain 1 life.

Flying, deathtouch Whenever you gain life, this creature gets +1/+1 until end of turn.

Flying Whenever this creature attacks, you gain 1 life.

Flying, lifelink At the beginning of your end step, if you descended this turn, scry 1. (You descended if a permanent card was put into your graveyard from anywhere.)

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) {T}, Pay 2 life: Remove a counter from target nonland permanent.

Exile target nonland permanent. You lose 3 life.

Choose two — • Destroy all artifacts. • Destroy all enchantments. • Destroy all creatures with mana value 3 or less. • Destroy all creatures with mana value 4 or greater.

Flying, lifelink When this creature enters, look at target opponent's hand. You may exile a nonland card from it until this creature leaves the battlefield.

Choose a number between 0 and 10. Destroy all creatures with power greater than or equal to the chosen number.

Destroy all creatures with power greater than target creature's power.

You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.

If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost. Destroy all creatures that entered this turn.

Whenever you gain life, put two +1/+1 counters on Karlov. {W}{B}, Remove six +1/+1 counters from Karlov: Exile target creature.

Destroy target creature or enchantment.

Nontoken creatures you control get +1/+1 and have vigilance.

Flying, deathtouch Whenever you gain or lose life during your turn, Bats you control get +1/+0 and gain deathtouch until end of turn. This ability triggers only once each turn.

(Gain the next level as a sorcery to add its ability.) Whenever one or more tokens you control enter, draw a card. This ability triggers only once each turn. {W}: Level 2 When this Class becomes level 2, create a token that's a copy of target token you control. {3}{W}: Level 3 Creature tokens you control get +2/+2.

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.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

At the beginning of your end step, if you gained life this turn, each opponent loses 1 life. At the beginning of your end step, if you gained and lost life this turn, create a 1/1 black Bat creature token with flying. {1}{B}, Pay 2 life: Draw a card.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Flying At the beginning of your end step, if you gained or lost life this turn, look at the top four cards of your library. You may reveal a creature card with power 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Look at twice X cards from the top of your library. Put X cards from among them into your hand and the rest into your graveyard. You lose X life.

Flying At the beginning of your end step, if you gained or lost life this turn, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Prevent all combat damage that would be dealt this turn if {W} was spent to cast this spell. Each player loses 1 life for each attacking creature they control if {B} was spent to cast this spell. (Do both if {W}{B} was spent.)

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

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

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Black creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

Black spells you cast cost {1} less to cast.

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

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {T}: Add one mana of any color.

White spells you cast cost {1} less to cast.

Whenever one or more creature cards leave your graveyard, create a 1/1 black Bat creature token with flying.

Flying At the beginning of each end step, if you gained life this turn, create a 1/1 black Bat creature token with flying.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) When this creature enters or dies, create a 1/1 black Bat creature token with flying.

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

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

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

{T}: Add {C}. {T}: Add {W}. Spend this mana only to cast a creature spell. {1}{W}, {T}, Sacrifice this land: Look at the top six cards of your library. You may reveal a Bat, Bird, Mouse, or Rabbit card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

{T}: Add {C}. {T}: Add {B}. Spend this mana only to cast a creature spell. {1}{B}, {T}, Sacrifice this land: Return target Bat, Lizard, Rat, or Squirrel card from your graveyard to your hand.

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

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

{T}: Add {C}. {1}, {T}: Move a counter from target permanent you control onto another target permanent. Activate only as a sorcery.

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {W}{B}.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

You have no maximum hand size. {T}: Add {C}.

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

({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 {W} or {B}.

Flying When this creature enters, if you gained life this turn, return up to one target creature card from your graveyard to your hand.

Flying Whenever this creature or another creature you control with flying dies, return another target creature card with lesser mana value from your graveyard to the battlefield.

Return target creature card with mana value 3 or less from your graveyard to the battlefield. Cycling {2} ({2}, Discard this card: Draw a card.)