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.

Will of the council — Starting with you, each player votes for a nonland permanent you don't control. Exile each permanent with the most votes or tied for most votes.

Exile each creature you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

+2: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without paying its mana cost.

+1: Each opponent exiles two cards from their hand.

−4: Nicol Bolas, God-Pharaoh deals 7 damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.

−12: Exile each nonland permanent your opponents control.

Flash

You control your opponents while they're searching their libraries.

While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Choose a creature you control, then each opponent chooses a creature they control with equal or lesser power. If you chose a creature this way, exile each creature not chosen by any player this way.

When this artifact enters, exile target card from a graveyard.

, Sacrifice this artifact: Exile each opponent's graveyard.

, , Sacrifice this artifact: Draw a card.

+2: Ugin, the Spirit Dragon deals 3 damage to any target.

−X: Exile each permanent with mana value X or less that's one or more colors.

−10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.