Mage-Ring Responder doesn't untap during your untap step.

: Untap Mage-Ring Responder.

Whenever Mage-Ring Responder attacks, it deals 7 damage to target creature defending player controls.

Magma Opus deals 4 damage divided as you choose among any number of targets. Tap two target permanents. Create a 4/4 blue and red Elemental creature token. Draw two cards.

, Discard Magma Opus: Create a Treasure token.

Flash

When this enchantment enters, you may put a name sticker on it.

Whenever you put a sticker on this enchantment, tap up to X target creatures, where X is the number of u's in name stickers on this enchantment.

Choose target creature. You lose 2 life. Until end of turn, that creature gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Tap X target artifacts, creatures, and/or lands. You lose X life.

As an additional cost to cast this spell, you may exile any number of green cards from your hand. This spell costs less to cast for each card exiled this way.

Choose target creature with mana value less than X. Search your library for a creature card with the same name as that creature, put it onto the battlefield tapped, then shuffle.

Marjhan doesn't untap during your untap step.

, Sacrifice a creature: Untap Marjhan. Activate only during your upkeep.

Marjhan can't attack unless defending player controls an Island.

: Marjhan gets -1/-0 until end of turn and deals 1 damage to target attacking creature without flying.

When you control no Islands, sacrifice Marjhan.

Gain control of target creature until end of turn. Put a +1/+1 counter on it and untap it. That creature gains haste until end of turn. (It can attack and this turn.)

: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)

For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.

First strike

: Tap target creature blocking Master of Arms.

At the beginning of your upkeep, create a 2/2 green Wolf creature token.

: Tap all untapped Wolf creatures you control. Each Wolf tapped this way deals damage equal to its power to target creature. That creature deals damage equal to its power divided as its controller chooses among any number of those Wolves.

: Matsu-Tribe Sniper deals 1 damage to target creature with flying.

Whenever Matsu-Tribe Sniper deals damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

: Add .

: Untap target attacking creature with shadow. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Memorial to Folly enters tapped.

: Add .

, , Sacrifice Memorial to Folly: Return target creature card from your graveyard to your hand.

Whenever Merchant Raiders or another Pirate you control enters, tap up to one target creature. That creature doesn't untap during its controller's untap step for as long as you control Merchant Raiders.

Flash

When Merfolk Trickster enters, tap target creature an opponent controls. It loses all abilities until end of turn.

, : Target creature gets -2/-0 until end of turn. ( is the untap symbol.)

Other Merfolk creatures you control get +1/+1.

Whenever you cast a Merfolk spell, you may tap or untap target permanent.

At the beginning of combat on your turn, if you control each creature on the battlefield with the greatest power, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)

Militia Rallier can't attack alone.

Whenever Militia Rallier attacks, untap target creature.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Tap target artifact, creature, or land.

Gift a tapped Fish (You may promise an opponent a gift as you cast this spell. If you do, they create a tapped 1/1 blue Fish creature token before its other effects.)

Target player draws three cards. If the gift was promised, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Protection from black

At the beginning of your upkeep, Minion of Leshrac deals 5 damage to you unless you sacrifice a creature other than Minion of Leshrac. If Minion of Leshrac deals damage to you this way, tap it.

: Destroy target creature or land.

Flying

Whenever you cast an artifact spell, you may untap target creature.

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Whenever this creature attacks, for each attacking modified creature you control, create a tapped and attacking token that's a copy of that creature. Exile those tokens at end of combat. (Equipment, Auras you control, and counters are modifications.)

Creatures target player controls don't untap during that player's next untap step.

When Mjölnir enters, attach it to target legendary creature you control.

Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls.

Equip

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.)

Haste

When Molten Primordial enters, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.

, Tap an untapped artifact or creature you control: Add .

Channel — , Discard Moonsnare Prototype: The owner of target nonland permanent puts it on their choice of the top or bottom of their library.

Double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

Whenever Moradin's Disciples attacks, tap target creature defending player controls.

Flying

, : Tap target creature.

Flash

Valiant — Whenever Mouse Trapper becomes the target of a spell or ability you control for the first time each turn, tap target creature an opponent controls.

Destroy target tapped creature.

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

During your turn, creatures you control have first strike and equip abilities you activate cost less to activate.

−X: Nahiri, Storm of Stone deals X damage to target tapped creature.

Enchant creature you control

: Untap enchanted creature. Activate only during your turn and only once each turn.

Tap enchanted creature: Untap target artifact, creature, or land. Activate only if enchanted creature is white and untapped and only once each turn.

Choose one —

• Naya Charm deals 3 damage to target creature.

• Return target card from a graveyard to its owner's hand.

• Tap all creatures target player controls.

, : Tap target creature.

Target creature gains deathtouch until end of turn. Regenerate it. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

As an additional cost to cast this spell, tap an untapped Vampire you control.

Gain control of target creature. Change the text of that creature by replacing all instances of one creature type with Vampire.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

When Nezumi Prowler enters, target creature you control gains deathtouch and lifelink until end of turn.

Flying

, : You may tap or untap target creature.

Flying

Whenever Niblis of the Urn attacks, you may tap target creature.

When Niko Aris enters, create X Shard tokens. (They're enchantments with ", Sacrifice this enchantment: Scry 1, then draw a card.")

+1: Up to one target creature you control can't be blocked this turn. Whenever that creature deals damage this turn, return it to its owner's hand.

−1: Niko Aris deals 2 damage to target tapped creature for each card you've drawn this turn.

−1: Create a Shard token.

Landfall — Whenever a land you control enters, put a loyalty counter on Nissa of Shadowed Boughs.

+1: Untap target land you control. You may have it become a 3/3 Elemental creature with haste and menace until end of turn. It's still a land.

−5: You may put a creature card with mana value less than or equal to the number of lands you control onto the battlefield from your hand or graveyard with two +1/+1 counters on it.

+1: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.

−2: Create Ashaya, the Awoken World, a legendary 4/4 green Elemental creature token.

−7: Untap up to six target lands. They become 6/6 Elemental creatures. They're still lands.

+1: Untap target land you control. Until your next turn, it becomes a 5/5 Elemental creature with haste. It's still a land.

−3: Return target permanent card from your graveyard to your hand.

−6: You get an emblem with "Whenever a land you control enters, you may draw a card."

+1: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land.

+1: Untap up to four target Forests.

−7: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle. Those lands become 4/4 Elemental creatures with trample. They're still lands.

, : Tap target creature.

Threshold — , : Tap two target creatures. Activate only if seven or more cards are in your graveyard.