Boomerang

Return target permanent to its owner's hand.

Adarkar Wastes

{T}: Add {C}.
{T}: Add {W} or {U}. This land deals 1 damage to you.

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Disenchant

Absorb

Solitary Confinement

At the beginning of your upkeep, sacrifice this enchantment unless you discard a card.
Skip your draw step.
You have shroud. (You can't be the target of spells or abilities.)
Prevent all damage that would be dealt to you.

Mana Leak

Counter target spell unless its controller pays {3}.

Mishra's Factory

{T}: Add {C}.
{1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Island

Counterspell

Evacuation

Return all creatures to their owners' hands.

Holy Day

Prevent all combat damage that would be dealt this turn.

Storage Matrix

As long as this artifact is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.

Hibernation

Return all green permanents to their owners' hands.

Wrath of God

Destroy all creatures. They can't be regenerated.

Impulse

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

Whispers of the Muse

Buyback {5} (You may pay an additional {5} as you cast this spell. If you do, put this card into your hand as it resolves.)
Draw a card.

Meddling Mage

As this creature enters, choose a nonland card name.
Spells with the chosen name can't be cast.

Fact or Fiction

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Howling Mine

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Prodigal Sorcerer

{T}: This creature deals 1 damage to any target.

Plains

Flooded Strand

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.