Cant Fetch

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.

[+2]: Exile the top three cards of target opponent's library.

[−X]: Put a creature card with mana value X exiled with Ashiok, Nightmare Weaver onto the battlefield under your control. That creature is a Nightmare in addition to its other types.

[−10]: Exile all cards from all opponents' hands and graveyards.

Draw three cards, then put two cards from your hand on top of your library in any order.

Add {B}{B}{B}.

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.

Counter target spell unless its controller pays {1}.

Choose one —

• Counter target sorcery spell.

• Destroy target creature with power 2 or less.

• Look at the top three cards of target player's library. Put one back and the rest into that player's graveyard.

Creatures with power greater than the number of cards in your hand can't attack.

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.

Target player discards two cards at random.

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

({T}: Add {U}.)

{T}: Add {C}.

{1}{U}{B}, {T}: Target player mills three cards.

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{T}: Add {U}. If you played a land this turn, add {B} instead.

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.

({T}: Add {B}.)

Flying

Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast it.

Target player mills two cards.

Draw a card.

({T}: Add {U} or {B}.)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.