Whenever a creature becomes the target of a spell or ability, return that creature to its owner's hand. (It won't be affected by the spell or ability.)

As this enchantment enters, choose a color. All nonland permanents are the chosen color.

As this enchantment enters, choose a color word. All instances of color words in the text of spells and permanents are changed to the chosen color word.

Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity. Equip commander {3} Equip {5}

Imprint — When this artifact enters, you may exile target card from a graveyard. {2}, {T}: Prevent all damage that would be dealt this turn by a source of your choice that shares a color with the exiled card.

Whenever you cast a spell, creatures you control can't be the targets of spells or abilities your opponents control this turn.

Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.) Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Change the text of target spell or permanent by replacing all instances of one color word with another. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)

Tap all blue creatures.

As this artifact enters, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Imprint — When this artifact enters, you may exile target land you control. Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

{T}: Add {C}{U}. Spend this mana only to activate abilities.

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

{T}: Add one mana of any color. {T}: Target creature becomes the color or colors of your choice until end of turn.

As this creature enters, choose a color. Chameleon Spirit's power and toughness are each equal to the number of permanents of the chosen color your opponents control.

{2}: Target black creature gains wither until end of turn. (It deals damage to creatures in the form of -1/-1 counters.)

{U}: Tap target green creature.

First strike, protection from red

This land enters tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.

({T}: Add {U}.)

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

{T}: Add {C}. {1}{U}, {T}: Return target Wizard you control to its owner's hand.

Return all attacking creatures to their owner's hand.

For each attacking creature, its owner puts it on their choice of the top or bottom of their library.

Choose one — • Counter target red spell. • Destroy target red permanent.

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.

Each creature your opponents control is an Illusion in addition to its other types and has "When this creature becomes the target of a spell or ability, sacrifice it."

{1}{U}: Counter target red spell.

Put target creature on top of its owner's library. If that creature is red, you may put it on the bottom of its owner's library instead.

Choose one — • Destroy target red permanent. • Return target Mountain to its owner's hand.

Counter target red or green spell.

Return all green permanents to their owners' hands.

Choose one — • Counter target spell if it's red. • Destroy target permanent if it's red.

Return all nonblue creatures to their owners' hands.

Counter target spell if it shares a color with a creature you control.

{1}{U}, {T}: Put target green creature on top of its owner's library.

When Llawan enters, return all blue creatures your opponents control to their owners' hands. Your opponents can't cast blue creature spells.

Choose three. You may choose the same mode more than once. • Counter target spell unless its controller pays {3}. • Return target creature to its owner's hand. • Draw a card.

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Pay 2 life or {2}: Counter target red or green spell. Any player may activate this ability.

You may choose not to untap this artifact during your untap step. {2}, {T}: Gain control of target creature with power less than or equal to the number of Islands you control for as long as this artifact remains tapped.

Return all permanents of the color of your choice to their owners' hands.

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

Draw three cards, then put two cards from your hand on top of your library in any order.

At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Draw a card for each Island you control, then discard two cards.

Whenever an opponent casts a green spell, you draw a card.

{2}{U}{U}, {T}: Draw a card for each Wizard you control.

Flying Sturmgeist's power and toughness are each equal to the number of cards in your hand. Whenever this creature deals combat damage to a player, draw a card.

Red spells cost {2} more to cast.

Creatures don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped nongreen creatures they control and pay {2} for each creature chosen this way. If the player does, untap those creatures.

At the beginning of each opponent's upkeep, that player chooses draw step, main phase, or combat phase. The player skips each instance of the chosen step or phase this turn.

Players can't cast spells that share a color with the spell most recently cast this turn.