Modern Horizons

Sisay, Weatherlight Captain gets +1/+1 for each color among other legendary permanents you control. {W}{U}{B}{R}{G}: Search your library for a lege...

{T}, Pay 1 life: Add {U} or {R}. {1}, {T}, Sacrifice Fiery Islet: Draw a card.

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

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that ...

Counter target instant or sorcery spell unless its controller pays {1}. Storm (When you cast this spell, copy it for each spell cast before it this...

{T}, Pay 1 life: Add {W} or {B}. {1}, {T}, Sacrifice Silent Clearing: Draw a card.

When Goblin Engineer enters the battlefield, you may search your library for an artifact card, put it into your graveyard, then shuffle. {R}, {T}, ...

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that s...

Whenever another Bear enters the battlefield under your control, choose one — • Put two +1/+1 counters on target Bear. • Target Bear you control ...

Activated abilities of artifacts can't be activated.

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

Suspend 4—{G} (Rather than cast this card from your hand, pay {G} and exile it with four time counters on it. At the beginning of your upkeep, remo...

As Mirrodin Besieged enters the battlefield, choose Mirran or Phyrexian. • Mirran — Whenever you cast an artifact spell, create a 1/1 colorless Myr...

Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of their library into their gravey...

All nonsnow creatures get -X/-X until end of turn, where X is the number of snow permanents you control.

{T}, Pay 1 life: Add {B} or {G}. {1}, {T}, Sacrifice Nurturing Peatland: Draw a card.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

You can't spend mana to cast this spell. Convoke, delve (Each creature you tap while casting this spell pays for {1} or one mana of that creature'...

When Aria of Flame enters the battlefield, each opponent gains 10 life. Whenever you cast an instant or sorcery spell, put a verse counter on Aria ...

Whenever Cordial Vampire or another creature dies, put a +1/+1 counter on each Vampire you control.

{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle your library.

Menace At the beginning of your precombat main phase, you may sacrifice a creature. When you do, choose a nonland card name, then target player rev...

Changeling (This card is every creature type.) Whenever you or a permanent you control becomes the target of a spell or ability an opponent control...

Sliver creatures you control have flying and haste.