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Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

{3 generic}3{red}R{red}R: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Flying, first strike, vigilance, trample, haste, protection from black and from red

Haste

As long as this card is in your graveyard and you control a Mountain, creatures you control have haste.

Enchant creature card in a graveyard

When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.

Enchanted creature gets -1/-0.

Flying

At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay {green}G{white}W{blue}U.

Each untapped creature you control gets +0/+2 as long as it's not attacking.

{white}W: Arcades Sabboth gets +0/+1 until end of turn.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

{tap}↷: Draw three cards.

{2 generic}2{blue}U{blue}U: Return Arcanis to its owner's hand.

Destroy all lands.

Destroy target artifact. It can't be regenerated. Create X 1/1 green Saproling creature tokens, where X is that artifact's mana value.

Sacrifice a creature: Add {colorless}C{colorless}C.

{black}B, Sacrifice a creature: Destroy target nonblack creature.

Whenever a creature you control enters, you may destroy target artifact or enchantment.

Nonbasic lands don't untap during their controllers' untap steps.

Minion creatures get +1/+1.

{black}B{black}B{black}B, Exile Balthor: Each player returns all black and all red creature cards from their graveyard to the battlefield.

At the beginning of your upkeep, if you have 200 or more cards in your library, you win the game.

{tap}↷: Add {colorless}C.

{tap}↷: Add {red}R or {white}W. This land deals 1 damage to you.

{1 generic}1{green}G, Exile two cards from your graveyard: Create a 2/2 green Bear creature token.

Flying

{tap}↷: Add one mana of any color.

Whenever a creature dies, put a charge counter on this enchantment.

At the beginning of your first main phase, add {black}B for each charge counter on this enchantment.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever this creature deals combat damage to a player, that player skips their next combat phase.

Nonbasic lands are Mountains.

At the beginning of each player's upkeep, that player discards a card at random.

Target player mills three cards.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Add {red}R for each Goblin on the battlefield.

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

As an additional cost to cast this spell, sacrifice a creature.

Add X mana in any combination of {black}B and/or {red}R, where X is the sacrificed creature's mana value.

Add {black}B{black}B{black}B.

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

{tap}↷: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Draw two cards, then discard two cards.

At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.

This creature can't block.

Sacrifice a creature: Put a +1/+1 counter on this creature.

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land of their choice. If the player does, they may copy this spell and may choose a new target for that copy.

This creature enters with three +1/+1 counters on it.

At the beginning of your upkeep, you may flip a coin. If you win the flip, put a +1/+1 counter on this creature. If you lose the flip, remove a +1/+1 counter from this creature.

Create a 1/1 green Squirrel creature token.

Flashback {1 generic}1{green}G (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying

Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

At the beginning of your upkeep, sacrifice Chromium unless you pay {white}W{blue}U{black}B.

Counter target spell unless its controller pays {1 generic}1 for each card in your graveyard.

Madness {blue}U (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

You may have this creature enter as a copy of any creature on the battlefield.

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

You may choose not to untap this creature during your untap step.

{2 generic}2{black}B, {tap}↷: Put target creature card from a graveyard onto the battlefield under your control. When this creature becomes untapped or you lose control of this creature, exile that creature.

Whenever a black card is put into an opponent's graveyard from anywhere, you may draw a card.

All creatures have haste.

Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Prevent all combat damage that would be dealt this turn.

Enchant creature

You control enchanted creature.

Counter target spell.

As an additional cost to cast this spell, sacrifice a land.

Search your library for a land card, put that card onto the battlefield, then shuffle.

Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

Draw a card.

All Slivers have shroud. (They can't be the targets of spells or abilities.)

As an additional cost to cast this spell, sacrifice a creature.

Add {black}B{black}B{black}B{black}B.

Choose any number of creatures target player controls. Choose the same number of creatures another target player controls. Those players exchange control of those creatures. (This effect lasts indefinitely.)

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Dakkon Blackblade's power and toughness are each equal to the number of lands you control.

When this enchantment enters, create a token that's a copy of target nontoken creature.

When this enchantment leaves the battlefield, exile the token.

When the token leaves the battlefield, sacrifice this enchantment.

At the beginning of your upkeep, sacrifice this enchantment unless you pay {blue}U{blue}U.

This creature can't attack unless defending player controls an Island.

When you control no Islands, sacrifice this creature.

Add {black}B{black}B{black}B.

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.

Counter target spell unless its controller pays {1 generic}1.

Destroy target artifact, target creature, target enchantment, and target land. (You can't cast this spell unless you have legal choices for all its targets.)