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.) Return target permanent to its owner's hand.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Counter target spell.

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

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.) Destroy target artifact.

Exchange control of two target lands. Splice onto Arcane {3}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

If you would gain life, you gain twice that much life instead. If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

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

{1}, {T}: Roll a d4 and create a number of Treasure tokens equal to the result. The player to your right gains control of this artifact.

Indestructible (Effects that say "destroy" don't destroy this artifact.) {T}: Add one mana of any color.

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

At the beginning of your upkeep, this artifact deals 2 damage to you. Sacrifice a creature: Target opponent gains control of this artifact.

{1}, {T}: Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.

{T}: Add {C}{C}.

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

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

{T}: Add {C}. {1}{U}{R}, {T}: Draw a card, then discard a card.

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

{T}: Add {C}. {T}: Each player gains control of all creatures they own.

({T}: Add {U}.)

({T}: Add {R}.)

({T}: Add {W}.)

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

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {W} or {U}.

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

{T}: Add {C}. {1}, {T}: Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.

When this creature enters, you may return target enchantment card from your graveyard to your hand.

{2}{W}: Tap target creature. {2}{U}: Counter target activated ability. (Mana abilities can't be targeted.)

{T}: Target player gains control of target artifact, creature, or land you control.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. Whenever this creature is dealt damage, draw that many cards.

Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, you may exchange control of target creature you control and target creature an opponent controls.

{1}{U}{U}, {T}: This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay {U} to end this effect. You control enchanted creature.

Vigilance (Attacking doesn't cause this creature to tap.) Lifelink (Damage dealt by this creature also causes you to gain that much life.) At the beginning of your upkeep, if you have 40 or more life, you win the game.

At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell.

Whenever this creature blocks or becomes blocked, target opponent gains control of it. (This removes this creature from combat.)

{T}: Draw two cards. Target opponent gains control of this creature. Activate only during your turn.

{T}: Each player may draw a card, then each player who drew a card this way gains 1 life.

{U}, {T}: Draw two cards. {R}, {T}, Discard a card: This creature deals damage to target creature equal to the discarded card's mana value.

{X}{U}{R}, {T}: Nin deals X damage to target creature. That creature's controller draws X cards.

({U/P} can be paid with either {U} or 2 life.) You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

You can't cast creature spells.

When this creature enters, exchange control of target land you control and target land an opponent controls.

If this spell was cast from your hand and you've cast another spell named Approach of the Second Sun this game, you win the game. Otherwise, put Approach of the Second Sun into its owner's library seventh from the top and you gain 7 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.

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.)

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

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

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)

Exchange control of target land you control and target land an opponent controls. (This effect lasts indefinitely.)

You and target opponent each draw three cards.

This spell can't be countered. Destroy all creatures.

Flash Enchant creature Enchanted creature has shroud. (It can't be the target of spells or abilities.)

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Enchant player Enchanted player can't cast more than one spell each turn.

Enchant creature Enchanted creature has "At the beginning of your upkeep, target opponent gains control of this creature unless you sacrifice a land."

Enchant creature Enchanted creature is an Insect artifact creature with base power and toughness 0/1 and has indestructible, and it loses all other abilities, card types, and creature types.

Creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

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

When this enchantment enters, exile target creature. When this enchantment leaves the battlefield, return the exiled card to the battlefield under its owner's control.

When this enchantment enters, exile another target nonland permanent. When this enchantment leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Enchant player At the beginning of enchanted player's first upkeep each turn, that player gets an additional upkeep step after this step.

Enchant creature {U}: Untap enchanted creature. {U}: Enchanted creature gains flying until end of turn. {U}: Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.) {1}: Enchanted creature gets +1/-1 or -1/+1 until end of turn.

Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated. Whenever a creature an opponent controls enters, you may attach this Aura to that creature.

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

Enchant creature Enchanted creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)

At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with equal or lesser mana value.

Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures, where X is the number of enchantments you control.

Enchant creature Enchanted creature gets +2/+2, has flying, and can't attack you or planeswalkers you control.