Spells and abilities your opponents control can't cause their controller to search their library.

-1: Target player mills four cards. Then exile each opponent's graveyard.

Destroy target creature if it has mana value 2 or less.

Revolt -- Destroy that creature if it has mana value 4 or less instead if a permanent you controlled left the battlefield this turn.

Destroy target creature if it has mana value 2 or less.

Revolt -- Destroy that creature if it has mana value 4 or less instead if a permanent you controlled left the battlefield this turn.

Sacrifice Fulminator Mage: Destroy target nonbasic land.

Sacrifice Fulminator Mage: Destroy target nonbasic land.

Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

+1: Exile up to two target cards from a single graveyard. You gain 2 life if at least one creature card was exiled this way.

-1: Exile target nonland permanent with mana value 1 or less.

-5: Kaya, Orzhov Usurper deals damage to target player equal to the number of cards that player owns in exile and you gain that much life.

+1: Each player discards a card.

-2: Target player sacrifices a creature.

-6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.

+1: Up to one target creature gets -2/-1 until your next turn.

-2: Mill two cards, then you may return a creature card from your graveyard to your hand.

-7: You get an emblem with "At the beginning of your end step, create X 2/2 black Zombie creature tokens, where X is two plus the number of Zombies you control."

Companion -- Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Deathtouch

As Plague Engineer enters, choose a creature type.

Creatures of the chosen type your opponents control get -1/-1.

When Soul-Guide Lantern enters the battlefield, exile target card from a graveyard.

{T}, Sacrifice Soul-Guide Lantern: Exile each opponent's graveyard.

{1}, {T}, Sacrifice Soul-Guide Lantern: Draw a card.

When Soul-Guide Lantern enters the battlefield, exile target card from a graveyard.

{T}, Sacrifice Soul-Guide Lantern: Exile each opponent's graveyard.

{1}, {T}, Sacrifice Soul-Guide Lantern: Draw a card.

Destroy target artifact.

Fuse (You may cast one or both halves of this card from your hand.)

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Destroy target enchantment.

Fuse (You may cast one or both halves of this card from your hand.)