{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

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

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

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

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

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {U}.)

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.

({T}: Add {W}.)

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

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

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

({T}: Add {B}.)

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

{2}, {T}, Sacrifice this artifact: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

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

{X}, {T}: Search your library for a creature card with mana value X or less, reveal it, put it into your hand, then shuffle.

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

This artifact enters tapped. {T}: Add two mana of different colors.

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

Imprint — Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with this artifact to its owner's graveyard. {3}, {T}: Create a token that's a copy of a card exiled with this artifact. It gains haste. Exile it at the beginning of the next end step.

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

This artifact enters tapped. {T}, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Equipped creature gets +1/+1 and is every creature type. Equip {2}

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

Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Search your library for a card, put that card into your hand, then shuffle.

Each player chooses a creature they control. Destroy the rest. Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.

Destroy all creatures you don't control and all planeswalkers you don't control.

Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.

Gain control of X target creatures and/or planeswalkers.

Converge — You draw X cards and you lose X life, where X is the number of colors of mana spent to cast this spell.

Search your library for a card, put that card into your hand, then shuffle. Cycling {B} ({B}, Discard this card: Draw a card.)

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

{T}: Add one mana of any color.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis to its owner's hand.

You may choose not to untap this creature during your untap step. As this creature enters, an opponent chooses a creature type. {T}: Gain control of target creature that isn't of the chosen type for as long as this creature remains tapped.

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

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Sacrifice a creature: Regenerate this creature. Transmute {1}{B}{B} ({1}{B}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

You may have this creature enter as a copy of any creature on the battlefield, except it has "{U}{B}, {T}: Destroy target creature with the same name as this creature."

{T}: Add {W}.

{T}, Sacrifice a creature: Return target creature card from your graveyard to the battlefield. Activate only during your upkeep.

Other Myr creatures you control get +1/+1. {1}, {T}: Untap each other Myr you control.

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

{T}: This creature deals 1 damage to any target.

{U}, {T}: You may tap or untap target creature.

Flying When this creature enters, put target creature card from an opponent's graveyard onto the battlefield under your control. It gains haste. At the beginning of your next end step, exile it. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

{T}: This creature deals 1 damage to any target.

You may have Sakashima the Impostor enter as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has "{2}{U}{U}: Return Sakashima the Impostor to its owner's hand at the beginning of the next end step."

{T}: Add {U}.

Flying When this creature enters, untap all creatures you control. Forecast — Tap two untapped white and/or blue creatures you control, Reveal this card from your hand: Draw a card. (Activate only during your upkeep and only once each turn.)

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.

Whenever a creature is exiled from the battlefield, put a +1/+1 counter on this creature. At the beginning of your end step, you may exile another target creature you control, then return that card to the battlefield under its owner's control.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, untap all creatures you control.

{T}: Untap another target permanent. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle this card, untap target permanent.

Enchant creature {1}, Tap an untapped creature you control: Untap enchanted creature.

Enchant creature {2}{W}{W}: Exile enchanted creature and all Auras attached to it. At the beginning of the next end step, return that card to the battlefield under its owner's control. If you do, return the other cards exiled this way to the battlefield under their owners' control attached to that creature.

Enchant creature {U}: Tap enchanted creature. {U}: Untap enchanted creature.

Enchant creature When enchanted creature dies, return that card to the battlefield under its owner's control. Return this card to the battlefield attached to that creature at the beginning of the next end step.

Enchant creature or planeswalker you control When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

Enchant creature Whenever enchanted creature deals damage to a player, return target creature that player controls to its owner's hand.

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

Counter target spell.

Exile target permanent with mana value 4 or greater.

Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.

Counter target noncreature spell.

Draw two cards, then sacrifice a permanent.

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

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.

As an additional cost to cast this spell, sacrifice a creature. Choose target creature card in your graveyard. Return that card and the sacrificed card to the battlefield under your control at the beginning of your next upkeep. Exile Rescue from the Underworld.

Counter target noncreature spell unless its controller pays {2}.

Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")