Psychic Corrosion

Whenever you draw a card, each opponent mills two cards.

Esper Sentinel

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Alhammarret's Archive

If you would gain life, you gain twice that much life instead.
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

Solemnity

Players can't get counters.
Counters can't be put on artifacts, creatures, enchantments, or lands.

Propaganda

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Paradox Haze

Enchant player
At the beginning of enchanted player's first upkeep each turn, that player gets an additional upkeep step after this step.

Counterbalance

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.

Forbidden Orchard

{T}: Add one mana of any color.
Whenever you tap Forbidden Orchard for mana, target opponent creates a 1/1 colorless Spirit creature token.

Torpor Orb

Creatures entering the battlefield don't cause abilities to trigger.

Idyllic Tutor

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

Back to Basics

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

Bazaar Trader

{T}: Target player gains control of target artifact, creature, or land you control.

Laboratory Maniac

If you would draw a card while your library has no cards in it, you win the game instead.

Eidolon of Rhetoric

Each player can't cast more than one spell each turn.

Grid Monitor

Temporal Mastery

Take an extra turn after this one. Exile Temporal Mastery.
Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)