Modern Horizons 3

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, you may cast that card without paying its mana cost if ...

You get X {E} (energy counters), then you may pay any amount of {E}. Destroy each artifact, creature, and enchantment with mana value less than or ...

Flying, first strike When White Orchid Phantom enters the battlefield, destroy up to one target nonbasic land. Its controller may search their libr...

When you cast this spell, draw two cards. Flying Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.) Evoke {2}...

Devoid (This card has no color.) Exile target nonland permanent. You may cast that card for as long as it remains exiled, and you may spend colorle...

You may sacrifice a nontoken white creature rather than pay this spell's mana cost. Until end of turn, your life total can't change, and permanents...

Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. Whe...

Flash Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies. Copies become to...

Landfall — Whenever a land enters the battlefield under your control, create a 0/1 green Plant creature token. If you control seven or more lands w...

Players can't untap more than one nonbasic land during their untap steps.

Noncreature spells you cast from exile have convoke. (Each creature you tap while casting a noncreature spell from exile pays for {1} or one mana o...

If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional ti...

You may sacrifice a nontoken white creature rather than pay this spell's mana cost. Until end of turn, your life total can't change, and permanents...

Flying Creatures you control have "Whenever this creature becomes the target of a spell or ability, reveal the top card of your library. If it's a ...

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) When Imskir Iron-Eater enters the battlefield, you draw X...

Haste Whenever Laelia, the Blade Reforged attacks, exile the top card of your library. You may play that card this turn. Whenever one or more cards...

Haste Whenever Laelia, the Blade Reforged attacks, exile the top card of your library. You may play that card this turn. Whenever one or more cards...

Lifelink Enchantment spells you cast have affinity for Auras. (They cost {1} less to cast for each Aura you control.) Whenever you cast an Aura spe...

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

You get {E}{E}{E} (three energy counters), then you may pay X {E}. Each player may exile their hand and draw X cards. If X is 7 or more, you may pl...

You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the gr...

Red spells you cast cost {1} less to cast.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Spymaster's Vault enters the battlefield tapped unless you control a Swamp. {T}: Add {B}. {B}, {T}: Target creature you control connives X, where X...