Put target attacking or blocking creature on top of its owner's library.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Whenever a permanent enters the battlefield tapped and under your control, untap it.

Enchant creature

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

{T}: Tap target creature.

Whenever you cast a white spell, you may untap Ballynock Trapper.

Create two 1/1 white Bird creature tokens with flying.

Flashback--Tap three untapped white creatures you control. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flash (You may cast this spell any time you could cast an instant.)

When Breaching Hippocamp enters the battlefield, untap another target creature you control.

You may cast Breaking Wave as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)

Simultaneously untap all tapped creatures and tap all untapped creatures.

Untap all creatures you control. Samurai creatures you control get +1/+1 until end of turn.

Whenever another Human enters the battlefield under your control, untap Captain of the Mists.

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

Partner with Chakram Slinger (When this creature enters the battlefield, target player may put Chakram Slinger into their hand from their library, then shuffle.)

Whenever you cast a spell during your turn, untap target creature.

Mage Hand -- {T}: Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

Tap two untapped artifacts you control: Untap target artifact.

When Corridor Monitor enters the battlefield, untap target artifact or creature you control.

Enchant creature

{2}{U}: Untap enchanted creature.

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Tap two untapped creatures you control: You may put a creature card from your hand that shares a creature type with each creature tapped this way onto the battlefield.

{1}, Exile an instant or sorcery card from your graveyard: Choose one --

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

• Disciple of the Ring gets +1/+1 until end of turn.

• Tap target creature.

• Untap target creature.

Flying

Dormant Gomazoa enters the battlefield tapped.

Dormant Gomazoa doesn't untap during your untap step.

Whenever you become the target of a spell, you may untap Dormant Gomazoa.

{0}: If Eater of the Dead is tapped, exile target creature card from a graveyard and untap Eater of the Dead.

Untap Endbringer during each other player's untap step.

{T}: Endbringer deals 1 damage to any target.

{C}, {T}: Target creature can't attack or block this turn.

{C}{C}, {T}: Draw a card.

When you cycle Esper Sojourners or it dies, you may tap or untap target permanent.

Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)

Whenever a creature dies, tap all untapped creatures that share a creature type with it or untap all tapped creatures that share a creature type with it.

{T}: You may tap or untap another target permanent.

Unearth {U} ({U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Enchant creature

Enchanted creature has "Whenever this creature attacks, you may tap or untap target permanent."

Flying

{1}{U}: Untap Glimmerbell.

You may tap or untap target permanent, then you may tap or untap another target permanent.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

{W}, {T}: Tap target creature.

Whenever you cast a Spirit or Arcane spell, untap Innocence Kami.

Flash

Flying

Whenever you cast a Wizard spell, you may untap Inspired Sprite.

{T}: Draw a card, then discard a card.

Creatures don't untap during their controllers' untap steps.

Whenever a creature enters the battlefield, untap all creatures.

{T}: Untap another target permanent you control.

{T}: Tap target permanent. Activate only if you control eight or more lands.

Flying

{1}{U}, {Q}: Target opponent exiles the top card of their library. Until end of turn, you may play that card. ({Q} is the untap symbol.)

Leech Bonder enters the battlefield with two -1/-1 counters on it.

{U}, {Q}: Move a counter from target creature onto a second target creature. ({Q} is the untap symbol.)

{T}: Target creature gets +1/+1 until end of turn.

Whenever you cast a spell, you may untap Leonin Battlemage.

{1}, {T}: Untap another target artifact.

{3}, {T}: Target creature can't be blocked this turn.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Whenever another creature enters the battlefield, untap Midnight Guard.

Discard a card: You may tap or untap target artifact, creature, or land.

Return target artifact or enchantment card from a graveyard to its owner's hand.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Whenever Mobile Garrison attacks, untap another target artifact or creature you control.

Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Flying

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

Bigby's Hand -- {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.

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.

Flash

Flying

When Pestermite enters the battlefield, you may tap or untap target permanent.

Flying

{2}, {Q}: Add one mana of any color. ({Q} is the untap symbol.)

Flying

As long as Pristine Angel is untapped, it has protection from artifacts and from all colors.

Whenever you cast a spell, you may untap Pristine Angel.

Flying

Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn.

Creatures you control get +1/+3 until end of turn. Untap them.

Creatures you control get +1/+1 until end of turn. Untap them.

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.

{T}: Add one mana of any color.

Tap an untapped legendary creature you control: Add one mana of any color.

Cast this spell only during an opponent's turn after their upkeep step.

Untap all lands you control.

Landfall -- Whenever a land enters the battlefield under your control, choose one --

• You may tap or untap target creature.

• Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Whenever one or more creatures attack you, if Reveille Squad is untapped, you may untap all creatures you control.

Choose one --

• Creatures you control get +1/+1 until end of turn.

• Untap all creatures you control.

Entwine {1}{W} (Choose both if you pay the entwine cost.)

{T}: Return target noncreature artifact card with mana value 1 or less from your graveyard to the battlefield.

Whenever a creature dies, you may untap Salvaging Station.

Enchant creature

{T}: Tap enchanted creature.

{T}: Untap enchanted creature.

Flying

{1}{W/U}, {Q}: Tap target creature. ({Q} is the untap symbol.)

When Sparring Regimen enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Whenever you attack, put a +1/+1 counter on target attacking creature and untap it.

{1}: Untap Staff of Domination.

{2}, {T}: You gain 1 life.

{3}, {T}: Untap target creature.

{4}, {T}: Tap target creature.

{5}, {T}: Draw a card.

{T}: Create a 2/2 colorless Pincher creature token.

Whenever an artifact is put into a graveyard from the battlefield, you may untap Summoning Station.

+1: Choose up to one target artifact, up to one target creature, and up to one target land. Untap the chosen permanents you control. Tap the chosen permanents you don't control. You gain 2 life.

-2: Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

-7: You get an emblem with "Untap all permanents you control during each opponent's untap step" and "You draw a card during each opponent's draw step."

Menace

Whenever an opponent sacrifices a nontoken permanent or discards a permanent card, you may put that card from a graveyard onto the battlefield under your control.

{T}: Target player loses 3 life unless they sacrifice a nonland permanent or discard a card.

{3}{B}: Untap Tergrid's Lantern.

+1: Untap up to two target artifacts.

-X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

-5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

Tap all creatures your opponents control and untap all creatures you control.

At the beginning of each upkeep, you may tap or untap target permanent.

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

Landfall -- Whenever a land enters the battlefield under your control, you may untap Tideforce Elemental.

Defender (This creature can't attack.)

{4}: Tidewater Minion loses defender until end of turn.

{T}: Untap target permanent.

Whenever a land enters the battlefield tapped and under your control, choose one --

• Untap that land.

• Tap target nonland permanent an opponent controls.

You may tap or untap target permanent, then you may tap or untap another target permanent.

Whenever you draw a card, you may pay {1}. When you do, you may tap or untap target creature.

Enchant creature

When Treachery enters the battlefield, untap up to five lands.

You control enchanted creature.

Return a land you control to its owner's hand: Untap Trench Behemoth. It gains hexproof until end of turn.

Landfall -- Whenever a land enters the battlefield under your control, target creature an opponent controls attacks during its controller's next combat phase if able.

You may tap or untap target artifact, creature, or land.

Draw a card.

{T}: Untap another target permanent.

Support 2. (Put a +1/+1 counter on each of up to two target creatures.)

Untap each creature you control with a +1/+1 counter on it.

Counter target noncreature spell. Untap up to three lands.

Untap all artifacts you control during each other player's untap step.

Flash (You may cast this spell any time you could cast an instant.)

When Village Bell-Ringer enters the battlefield, untap all creatures you control.

{T}: Untap another target permanent.

Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

When you cycle Vizier of Tumbling Sands, untap target permanent.

{2}: Untap target artifact creature.

{1}, {T}: Untap target artifact.

At the beginning of your end step, untap target artifact.