Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

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.

Sacrifice a creature: Add one mana of any color.

{1}: Look at the top three cards of your library, then put them back in any order. {T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.

Storm (When you cast this spell, copy it for each spell cast before it this turn. Copies become tokens.) Aeve, Progenitor Ooze isn't legendary if it's a token. Aeve enters the battlefield with a +1/+1 counter on it for each other Ooze you control.

Menace Ward—Pay 3 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.) Magecraft — Whenever you cast or copy an instant or sorcery spell, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

All creatures have haste.

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

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.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

Add {B}{B}{B}.

Exile target creature or planeswalker. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Permanents you control gain hexproof and indestructible until end of turn.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) If this spell was bargained, look at the top four cards of your library, then put up to two of them back on top of your library in any order and the rest into your graveyard. You draw two cards and you lose 2 life.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

({T}: Add {B} or {G}.)

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

{T}: Add {G}. Channel — {1}{G}, Discard Boseiju, Who Endures: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {C}. {1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash.

({T}: Add {G}.)

{T}: Add {G} for each creature you control.

Hidden Necropolis enters the battlefield tapped. {T}: Add {B}. {4}{B}, {T}, Sacrifice Hidden Necropolis: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Hidden Nursery enters the battlefield tapped. {T}: Add {G}. {4}{G}, {T}, Sacrifice Hidden Nursery: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Mosswort Bridge enters the battlefield tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

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

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

({T}: Add {B}.)

{T}: Add {B}. Channel — {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.

Each land is a Swamp in addition to its other land types.

Look at target player's hand and choose two cards from it. Put them on top of that player's library in any order.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Search your library for a card, exile it face down, then shuffle. If this spell was bargained, you may cast the exiled card without paying its mana cost if that spell's mana value is 4 or less. Put the exiled card into your hand if it wasn't cast this way.

({2/B} can be paid with any two mana or with {B}. This card's mana value is 6.) Search your library for a card with mana value less than or equal to the number of lands you control, reveal it, put it into your hand, then shuffle.

Search target player's library for a card and exile it. Then that player shuffles. Gravestorm (When you cast this spell, copy it for each permanent put into a graveyard this turn. You may choose new targets for the copies.)

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Destroy all creatures. They can't be regenerated.

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

Search your library for a card, put that card into your hand, then shuffle.

As an additional cost to cast this spell, sacrifice a creature. Search your library for a card, put that card into your hand, then shuffle.

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

Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.

Exile Ill-Gotten Gains. Each player discards their hand, then returns up to three cards from their graveyard to their hand.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

Create a 0/0 green Ooze creature token with trample. Put X +1/+1 counters on it, where X is two plus the total number of cards you own in exile and in your graveyard that are Oozes or are named Slime Against Humanity. A deck can have any number of cards named Slime Against Humanity.

When you cast this spell, any player may pay half their life, rounded up. If a player does, counter Temporal Extortion. Take an extra turn after this one.

Target player loses 2 life and you gain 2 life. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)