Return all attacking creatures to their owner's hand.

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

Flying

As Alhammarret, High Arbiter enters the battlefield, each opponent reveals their hand. You choose the name of a nonland card revealed this way.

Your opponents can't cast spells with the chosen name (as long as this creature is on the battlefield).

Flash

Flying

When Angel of the Dire Hour enters the battlefield, if you cast it from your hand, exile all attacking creatures.

Flying

Each opponent who cast a spell this turn can't attack with creatures.

Each opponent who attacked with a creature this turn can't cast spells.

Flying

Inspired -- Whenever Arbiter of the Ideal becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

Flying

Whenever Archon of Redemption or another creature with flying enters the battlefield under your control, you may gain life equal to that creature's power.

Azorius Chancery enters the battlefield tapped.

When Azorius Chancery enters the battlefield, return a land you control to its owner's hand.

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

Azorius Guildgate enters the battlefield tapped.

{T}: Add {W} or {U}.

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

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

Boreal Shelf enters the battlefield tapped.

{T}: Add {W} or {U}.

You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, each opponent mills seven cards.

Flying

When Chancellor of the Spires enters the battlefield, you may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost.

Coastal Tower enters the battlefield tapped.

{T}: Add {W} or {U}.

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

Sacrifice Commander's Sphere: Draw a card.

Flying

Whenever Conundrum Sphinx attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library.

Indestructible

{T}: Add one mana of any color.

Search your library for a card, put that card into your hand, then shuffle.

Dimir Aqueduct enters the battlefield tapped.

When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.

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

Dimir Guildgate enters the battlefield tapped.

{T}: Add {U} or {B}.

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

Dismal Backwater enters the battlefield tapped.

When Dismal Backwater enters the battlefield, you gain 1 life.

{T}: Add {U} or {B}.

Flying, double strike, lifelink

Whenever you gain life, draw a card.

Flying

When Enigma Sphinx is put into your graveyard from the battlefield, put it into your library third from the top.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

{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.)

Return all creatures to their owners' hands.

Creatures you control with flying get +1/+1.

{T}: Look at target player's hand.

Flying

Whenever Glyph Keeper becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

Embalm {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Sphinx with no mana cost. Embalm only as a sorcery.)

Creatures with flying get +2/+0.

Creatures without flying get -2/-0.

Defender, flying

Prevent all combat damage that would be dealt to Guard Gomazoa.

Flying

Landfall -- Whenever a land enters the battlefield under your control, tap target creature an opponent controls. If that land is an Island, that creature doesn't untap during its controller's next untap step.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Flying

Whenever Isperia the Inscrutable deals combat damage to a player, choose a card name. That player reveals their hand. If a card with the chosen name is revealed this way, search your library for a creature card with flying, reveal it, put it into your hand, then shuffle.

Flying

Whenever a creature attacks you or a planeswalker you control, you may draw a card.

Destroy all creatures. They can't be regenerated.

Threshold -- If seven or more cards are in your graveyard, instead destroy all creatures, then create two 1/1 white Spirit creature tokens with flying. Creatures destroyed this way can't be regenerated.

Flying

When Magister Sphinx enters the battlefield, target player's life total becomes 10.

Creatures without flying can't attack.

Equipped creature gets +1/+2 and has hexproof. (It can't be the target of spells or abilities your opponents control.)

Equip {3}

Flying

Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost.

Meandering River enters the battlefield tapped.

{T}: Add {W} or {U}.

Flying

Whenever Medomai the Ageless deals combat damage to a player, take an extra turn after this one.

Medomai the Ageless can't attack during extra turns.

Equipped creature has shroud. (It can't be the target of spells or abilities.)

{U}{U}: Attach Neurok Stealthsuit to target creature you control.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Orzhov Basilica enters the battlefield tapped.

When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand.

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

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

Look at target player's hand.

Draw a card.

Destroy all creatures, then create an X/X colorless Phyrexian Horror artifact creature token, where X is the number of creatures destroyed this way.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Flying

Discard a card: Prognostic Sphinx gains hexproof until end of turn. Tap it.

Whenever Prognostic Sphinx attacks, scry 3.

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Sejiri Refuge enters the battlefield tapped.

When Sejiri Refuge enters the battlefield, you gain 1 life.

{T}: Add {W} or {U}.

Flying

Whenever an artifact creature you control deals combat damage to a player, you may create a 1/1 blue Thopter artifact creature token with flying.

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

Flying

Whenever Sphinx Ambassador deals combat damage to a player, search that player's library for a card, then that player chooses a card name. If you searched for a creature card that doesn't have that name, you may put it onto the battlefield under your control. Then that player shuffles.

Flying

At the beginning of your end step, you gain 3 life if Sphinx Sovereign is untapped. Otherwise, each opponent loses 3 life.

Flying

When Sphinx Summoner enters the battlefield, you may search your library for an artifact creature card, reveal it, put it into your hand, then shuffle.

Flying

Shroud (This creature can't be the target of spells or abilities.)

You may look at the top card of your library any time.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)

Flying

When Sphinx of Lost Truths enters the battlefield, draw three cards. Then if it wasn't kicked, discard three cards.

Flying

{2}{U}: Draw a card, then put a +1/+1 counter on Sphinx of Magosi.

Flying

When Sphinx of Uthuun enters the battlefield, 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.

This spell can't be countered.

Flying, hexproof

Instant and sorcery spells you control can't be countered.

Flying, first strike, vigilance, lifelink, protection from red and from green

Look at target player's hand, the top card of that player's library, and any face-down creatures they control. Look at the top four cards of your library, then put them back in any order.

Flying

{2}: Steel Hellkite gets +1/+0 until end of turn.

{X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.

Enchant creature

As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

All lands are Islands in addition to their other types.

Creatures without flying or islandwalk can't attack.

Submerged Boneyard enters the battlefield tapped.

{T}: Add {U} or {B}.

Flying

When Sunblast Angel enters the battlefield, destroy all tapped creatures.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

Your opponents play with their hands revealed.

{T}: Add {C}{C}. Activate only if you control five or more lands.

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

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

Flying

Other creatures you control with flying get +1/+1.

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

{T}: Add {W} or {U}.

Transguild Promenade enters the battlefield tapped.

When Transguild Promenade enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Flying

Sphinx spells you cast cost {2} less to cast.

Whenever Unesh, Criosphinx Sovereign or another Sphinx enters the battlefield under your control, reveal the top four cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Defender, flying

Shroud (This creature can't be the target of spells or abilities.)

Flying

Creature spells with flying you cast cost {1} less to cast.

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

Equipped creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)

Equip {2}

Flying

Whenever a creature with flying attacks, you may draw a card.