Scholar of New Horizons enters the battlefield with a +1/+1 counter on it.

, Remove a counter from a permanent you control: Search your library for a Plains card and reveal it. If an opponent controls more lands than you, you may put that card onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand. Then shuffle.

Kicker (You may pay an additional as you cast this spell.)

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. If this spell was kicked, create two 1/1 white Soldier creature tokens.

Search your library for any number of basic land cards, reveal those cards, then shuffle and put them on top.

Flying

When Screaming Seahawk enters the battlefield, you may search your library for a card named Screaming Seahawk, reveal it, put it into your hand, then shuffle.

Search your library for a snow permanent card, a legendary card, or a Saga card, reveal it, put it into your hand, then shuffle. You gain 1 life for each spent to cast this spell. ( is mana from a snow source.)

Exile target nonland card from your graveyard. Search your library for any number of cards with the same name as that card, reveal them, put them into your hand, then shuffle.

Search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Search your library for any number of nonland cards, exile them, then shuffle.

Search your library for a basic land card and reveal it. If there's a tree in its art, put it onto the battlefield tapped. Otherwise, put it into your hand. Then shuffle.

A deck can have any number of cards named Shadowborn Apostle.

, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

Search your library for a Plains card, an Island card, a Swamp card, and a Mountain card. Reveal those cards, put them into your hand, then shuffle.

Cycling (, Discard this card: Draw a card.)

When you cycle Shefet Monitor, you may search your library for a basic land card or a Desert card, put it onto the battlefield, then shuffle. (Do this before you draw.)

: Add .

, , Sacrifice Shire Terrace: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Exile up to four target cards from a single graveyard.

Transmute (, 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.)

Deathtouch

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library.

When Silver Deputy enters the battlefield, you may search your library for a basic land card or a Desert card, reveal it, then shuffle and put it on top.

: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery.

, , Discard a card: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

+1: Until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays 2 life for each of those creatures.

−3: Search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

−7: Destroy all non-Dragon creatures.

Sivitri, Dragon Master can be your commander.

When Skyship Weatherlight enters the battlefield, search your library for any number of artifact and/or creature cards, exile them, then shuffle.

, : Choose a card at random that was exiled with Skyship Weatherlight. Put that card into its owner's hand.

, : Search your library for an Elf permanent card, put it onto the battlefield, then shuffle.

Domain — Search your library for up to two land cards that each have a basic land type, put them onto the battlefield tapped, then shuffle. Look at the top X cards of your library, where X is the number of basic land types among lands you control. Put up to one of them on top of your library and the rest on the bottom of your library in a random order.

Draft Smuggler Captain face up.

As you draft a card, you may reveal it, note its name, then turn Smuggler Captain face down.

When Smuggler Captain enters the battlefield, you may search your library for a card with a name you noted for cards named Smuggler Captain, reveal it, put it into your hand, then shuffle.

Affinity for artifacts

Artifact landcycling (, Discard this card: Search your library for an artifact land card, reveal it, put it into your hand, then shuffle.)

Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Whenever a creature you control attacks alone, you may search your library for an Aura card that could enchant that creature, put it onto the battlefield attached to that creature, then shuffle.

When Spellseeker enters the battlefield, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.

, , Sacrifice a white creature, a blue creature, and a black creature: Search your library for a card named Sphinx Sovereign, put it onto the battlefield, then shuffle.

When Spirit of the Aldergard enters the battlefield, search your library for a snow land card, reveal it, put it into your hand, then shuffle.

Spirit of the Aldergard gets +1/+0 for each other snow permanent you control.

Search your library for a Plains, Island, Swamp, Mountain, or Forest card and put that card onto the battlefield. Then shuffle.

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Kicker (You may pay an additional as you cast this spell.)

When Sprouting Goblin enters the battlefield, if it was kicked, search your library for a land card with a basic land type, reveal it, put it into your hand, then shuffle.

, , Sacrifice a land: Draw a card.

Flying

When Squadron Hawk enters the battlefield, you may search your library for up to three cards named Squadron Hawk, reveal them, put them into your hand, then shuffle.

Search your library for an Equipment card, reveal that card, put it into your hand, then shuffle.

Other enchantments you control have shroud. (They can't be the targets of spells or abilities.)

, Sacrifice Sterling Grove: Search your library for an enchantment card, reveal it, then shuffle and put that card on top.

When Stoneforge Mystic enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.

, : You may put an Equipment card from your hand onto the battlefield.

Imprint — When Strata Scythe enters the battlefield, search your library for a land card, exile it, then shuffle.

Equipped creature gets +1/+1 for each land on the battlefield with the same name as the exiled card.

Equip

Vigilance

Channel — , Discard Sunblade Samurai: Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Equipped creature gets +4/+0.

, Unattach Sunforger: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle.

Equip

, Exile Surveyor's Scope: Search your library for up to X basic land cards, where X is the number of players who control at least two more lands than you. Put those cards onto the battlefield, then shuffle.

Equipped creature gets +2/+2 and has protection from green and from white.

Whenever equipped creature deals combat damage to a player, exile up to one target creature you own, then search your library for a basic land card. Put both cards onto the battlefield under your control, then shuffle.

Equip

Target player gains 8 life.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

When Sylvan Ranger enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

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

When Taj-Nar Swordsmith enters the battlefield, you may pay . If you do, search your library for an Equipment card with mana value X or less, put that card onto the battlefield, then shuffle.

At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

, Sacrifice three Clues: Search your library for a card, put that card into your hand, then shuffle.

Flash

When Teferi's Wavecaster enters the battlefield, you may search your library and/or graveyard for a card named Teferi, Timeless Voyager, reveal it, and put it into your hand. If you search your library this way, shuffle.

: Add .

, , Sacrifice Terminal Moraine: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

+1: Create a 1/1 colorless Thopter artifact creature token with flying.

0: Draw a card. If you control three or more artifacts, draw two cards instead.

−9: You get an emblem with "At the beginning of your end step, search your library for a permanent card, put it onto the battlefield, then shuffle."