Return all attacking creatures to their owner's hand.

When Augur of Bolas enters the battlefield, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

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

Whenever Cephalid Constable deals combat damage to a player, return up to that many target permanents that player controls to their owner's hand.

Counter target spell. If the spell is countered this way, exile it with three time counters on it instead of putting it into its owner's graveyard. If it doesn't have suspend, it gains suspend. (At the beginning of its owner's upkeep, they remove a time counter. When the last is removed, they may play it without paying its mana cost. If it's a creature, it has haste.)

Counter target spell with mana value 4 or greater.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Untap all nonland permanents you control.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.

Tap all creatures.

Return all creatures to their owners' hands.

When Exclusion Mage enters the battlefield, return target creature an opponent controls to its owner's hand.

Flying

When Faerie Seer enters, scry 2.

Play with the top card of your library revealed.

You may play lands and cast spells from the top of your library.

{T}: Add three mana of any one color.

Instant and sorcery spells you cast cost {1} less to cast.

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

Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Izzet Boilerworks enters tapped.

When Izzet Boilerworks enters, return a land you control to its owner's hand.

{T}: Add {U}{R}.

When Izzet Chronarch enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

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

{U/R}{U/R}{U/R}{U/R}, {T}, Sacrifice Izzet Locket: Draw two cards.

Whenever you cast your second spell each turn, draw a card.

Lightning Bolt deals 3 damage to any target.

{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

If a Wizard entering the battlefield under your control causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

This spell can't be countered.

Flying

Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.

Whenever a player casts an instant or sorcery spell, you draw a card.

Counter target creature spell. Draw cards equal to that spell's mana value.

{T}: Add {C}.

{T}, Pay 1 life: Add {R}.

{2}{R}{R}, {T}, Sacrifice a Desert: Ramunap Ruins deals 2 damage to each opponent.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

When Riverwise Augur enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order.

When Salvager of Secrets enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Sphere of the Suns enters the battlefield tapped and with three charge counters on it.

{T}, Remove a charge counter from Sphere of the Suns: Add one mana of any color.

Return all lands to their owners' hands.

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Flash

Creature cards you own that aren't on the battlefield have flash.

Each opponent can cast spells only any time they could cast a sorcery.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Draw three cards.