Narset Transcendent

+1: Look at the top card of your library. If it's a noncreature, nonland card, you may reveal it and put it into your hand. -2: When you cast your next instant or sorcery spell from your hand this turn, it gains rebound. -9: You get an emblem with "Your opponents can't cast noncreature spells."

Day's Undoing

Each player shuffles his or her hand and graveyard into his or her library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities on the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Displacement Wave

Return all nonland permanents with converted mana cost X or less to their owners' hands.

Hydrolash

Attacking creatures get -2/-0 until end of turn. Draw a card.

Jace's Sanctum

Instant and sorcery spells you cast cost {1} less to cast. Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Prism Ring

As Prism Ring enters the battlefield, choose a color. Whenever you cast a spell of the chosen color, you gain 1 life.

Noyan Dar, Roil Shaper

Part the Waterveil

Prairie Stream

Engulf the Shore

Invasive Surgery

Nagging Thoughts

Pore Over the Pages

Rise from the Tides

Thing in the Ice/Awoken Horror

Negate

Counter target noncreature spell.

Anticipate

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.