Demonic Tutor

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

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Swamp

Howling Mine

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

The Abyss

At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of their choice. It can't be regenerated.

Relic Barrier

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Shatter

Badlands

City of Brass

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

Underworld Dreams

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Mox Jet

Winds of Change

Each player shuffles the cards from their hand into their library, then draws that many cards.

Copy Artifact

You may have Copy Artifact enter the battlefield as a copy of any artifact on the battlefield, except it's an enchantment in addition to its other types.

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Sinkhole

Strip Mine

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

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Chaos Orb

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

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.