Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Sandstorm

Sandstorm deals 1 damage to each attacking creature.

Fallen Angel

Flying
Sacrifice a creature: This creature gets +2/+1 until end of turn.

Scavenger Folk

{G}, {T}, Sacrifice this creature: Destroy target artifact.

Island

Sol Ring

Regrowth

Return target card from your graveyard to your hand.

Maze of Ith

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Gloom

White spells cost {3} more to cast.
Activated abilities of white enchantments cost {3} more to activate.

Merfolk of the Pearl Trident

Lord of Atlantis

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Mind Twist

Target player discards X cards at random.

City of Brass

Whenever this land becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Birds of Paradise

Ancestral Recall

Underground Sea

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Pendelhaven

{T}: Add {G}.
{T}: Target 1/1 creature gets +1/+2 until end of turn.

Elves of Deep Shadow

{T}: Add {B}. This creature deals 1 damage to you.

Mox Sapphire

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.

Mox Emerald

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Erhnam Djinn

At the beginning of your upkeep, target non-Wall creature an opponent controls gains forestwalk until your next upkeep. (It can't be blocked as long as defending player controls a Forest.)

Serendib Efreet

Flying
At the beginning of your upkeep, this creature deals 1 damage to you.

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Chaos Orb

{1}, {T}: If this artifact is on the battlefield, flip it onto the battlefield from a height of at least one foot. If this artifact turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy this artifact.

Mox Jet

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Berserk

Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.