Grafdigger's Cage

Creature cards in graveyards and libraries can't enter the battlefield.
Players can't cast spells from graveyards or libraries.

Back to Basics

Nonbasic lands don't untap during their controllers' untap steps.

Root Maze

Trinisphere

As long as this artifact is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)

Rhystic Study

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Maralen of the Mornsong

Players can't draw cards.
At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles.

Stasis

Players skip their untap steps.
At the beginning of your upkeep, sacrifice this enchantment unless you pay {U}.

Hullbreaker Horror

Flash
This spell can't be countered.
Whenever you cast a spell, choose up to one —
• Return target spell you don't control to its owner's hand.
• Return target nonland permanent to its owner's hand.

Frozen Aether

Artifacts, creatures, and lands your opponents control enter tapped.

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Static Orb

As long as this artifact is untapped, players can't untap more than two permanents during their untap steps.