Flying

Whenever All-Seeing Arbiter enters the battlefield or attacks, draw two cards, then discard a card.

Whenever you discard a card, target creature an opponent controls gets -X/-0 until your next turn, where X is the number of different mana values among cards in your graveyard.

Flying

Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control.

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

Flying

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

When you cycle Avian Oddity, put a flying counter on target creature you control.

Whenever you discard a creature card, create a 2/2 black Zombie creature token.

Whenever you discard a land card, add {B}{B}.

Whenever you discard a noncreature, nonland card, draw a card.

As an additional cost to cast this spell, sacrifice a creature or discard a card.

Destroy target creature or planeswalker.

Destroy target creature that isn't enchanted. It can't be regenerated.

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.)

Tap up to four target creatures.

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

When you cycle Choking Tethers, you may tap target creature.

Return target permanent to its owner's hand. Its controller loses 3 life.

Transmute {1}{U}{B} ({1}{U}{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.)

Counter target spell unless its controller pays {3}.

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

When you cycle Complicate, you may counter target spell unless its controller pays {1}.

Whenever you discard a card, you may exile that card from your graveyard. If you do, you may play that card this turn.

Flying

Whenever you cycle or discard another card, scry 1.

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

Whenever you cast a creature spell, you may pay {1}. If you do, draw a card, then discard a card.

Target creature gets -4/-4 until end of turn.

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

When you cycle Death Pulse, you may have target creature get -1/-1 until end of turn.

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way.

Cycling {3}{B}{B} ({3}{B}{B}, Discard this card: Draw a card.)

When you cycle Decree of Pain, all creatures get -2/-2 until end of turn.

Whenever an opponent casts a spell, counter that spell and put a depletion counter on Decree of Silence. If there are three or more depletion counters on Decree of Silence, sacrifice it.

Cycling {4}{U}{U} ({4}{U}{U}, Discard this card: Draw a card.)

When you cycle Decree of Silence, you may counter target spell.

Draw two cards, then discard a card. You gain life equal to the number of cards you've discarded this turn.

Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Sacrifice a creature: Regenerate Dimir House Guard.

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.)

Dimir Infiltrator can't be blocked.

Transmute {1}{U}{B} ({1}{U}{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.)

Look at the top three cards of target player's library. Exile any number of those cards, then put the rest back in any order.

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.)

All creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

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

When you cycle Dirge of Dread, you may have target creature gain fear until end of turn.

Target creature gets -3/-0 until end of turn.

Transmute {1}{U}{U} ({1}{U}{U}, 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.)

Ninjutsu {1}{B} ({1}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Dokuchi Silencer deals combat damage to a player, you may discard a creature card. When you do, destroy target creature or planeswalker that player controls.

Whenever you cycle or discard a card, you may pay {1}. If you do, create a 2/2 blue Drake creature token with flying.

Defender (This creature can't attack.)

Flying

Transmute {1}{U}{U} ({1}{U}{U}, 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.)

Whenever you discard one or more cards, create a tapped 2/2 black Zombie creature token. This ability triggers only once each turn.

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

Transmute {1}{U}{U} ({1}{U}{U}, 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.)

Whenever you cycle or discard a card, you may pay {1}. If you do, each opponent loses 2 life and you gain 2 life.

Whenever you discard a card, Feast of Sanity deals 1 damage to any target and you gain 1 life.

Each opponent mills fourteen cards.

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

When you cycle Fractured Sanity, each opponent mills four cards.

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

When you cycle Gempalm Polluter, you may have target player lose life equal to the number of Zombies on the battlefield.

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

When you cycle Gempalm Sorcerer, Wizard creatures gain flying until end of turn.

Flying

{2}{U}: Another target creature gains flying until end of turn.

Channel -- {X}{U}, Discard Ghost-Lit Drifter: X target creatures gain flying until end of turn.

{4}{B}, {T}: Target player discards two cards. Activate only as a sorcery.

Channel -- {5}{B}{B}, Discard Ghost-Lit Stalker: Target player discards four cards. Activate only as a sorcery.

{3}{U}, {T}: Counter target spell unless its controller pays {2}.

Channel -- {3}{U}, Discard Ghost-Lit Warder: Counter target spell unless its controller pays {4}.

Defender (This creature can't attack.)

When Grozoth enters the battlefield, you may search your library for any number of cards that have mana value 9, reveal them, put them into your hand, then shuffle.

{4}: Grozoth loses defender until end of turn.

Transmute {1}{U}{U} ({1}{U}{U}, 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.)

Whenever you discard a card, you may pay {1}. If you do, amass 2. (Put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)

Flying

Whenever a player casts their second spell each turn, Ledger Shredder connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)

Channel -- {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}.

{1}{U}, Sacrifice Mnemonic Sphere: Draw two cards.

Channel -- {U}, Discard Mnemonic Sphere: Draw a card.

{T}, Tap an untapped artifact or creature you control: Add {C}.

Channel -- {4}{U}, Discard Moonsnare Prototype: The owner of target nonland permanent puts it on the top or bottom of their library.

Counter target instant or sorcery spell.

Transmute {1}{U}{U} ({1}{U}{U}, 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.)

At the beginning of your upkeep, scry 1.

Whenever you discard a card, each opponent mills two cards. (They put the top two cards of their library into their graveyard.)

When Netherborn Phalanx enters the battlefield, each opponent loses 1 life for each creature they control.

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 then shuffle. Transmute only as a sorcery.)

Flash

Flying

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

When you cycle Nimble Obstructionist, counter target activated or triggered ability you don't control.

This spell costs {1} less to cast for each different mana value among cards in your graveyard.

Whenever you discard a nonland card, you may cast it from your graveyard.

{T}: Add {U}.

Channel -- {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

Flying

Other Spirits you control get +1/+1.

Spells you cast from your graveyard cost {1} less to cast.

Counter target spell unless its controller discards their hand.

Transmute {1}{U}{B} ({1}{U}{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.)

Whenever River Kelpie or another permanent enters the battlefield from a graveyard, draw a card.

Whenever a player casts a spell from a graveyard, draw a card.

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.)

Channel -- {3}{U}, Discard Saiba Trespassers: Tap up to two target creatures you don't control. Those creatures don't untap during their controller's next untap step.

Whenever you cast a spell from your graveyard, draw a card.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's mana value.

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

When you cycle Shark Typhoon, create an X/X blue Shark creature token with flying.

Shinen of Fear's Chill can't block.

Channel -- {1}{B}, Discard Shinen of Fear's Chill: Target creature can't block this turn.

Flying

Channel -- {U}, Discard Shinen of Flight's Wings: Target creature gains flying until end of turn.

Exile up to four target cards from a single graveyard.

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.)

Flying

Discard a card: Add {B}.

Create three 2/2 black Zombie creature tokens.

Cycling {3}{B} ({3}{B}, Discard this card: Draw a card.)

When you cycle Stir the Sands, create a 2/2 black Zombie creature token.

{T}: Add {B}.

Channel -- {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature 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.

Deathtouch

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

When you cycle Void Beckoner, put a deathtouch counter on target creature you control.

Skulk (This creature can't be blocked by creatures with greater power.)

Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.

Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token.

Flying

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

When you cycle Windcaller Aven, target creature gains flying until end of turn.