Black Vise

As this artifact enters, choose an opponent.
At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is the number of cards in their hand minus 4.

Mana Vault

This artifact doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Relic Barrier

Su-Chi

When this creature dies, add {C}{C}{C}{C}.

Mox Ruby

Shatter

Winter Orb

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

Ankh of Mishra

Whenever a land enters, this artifact deals 2 damage to that land's controller.

Triskelion

This creature enters with three +1/+1 counters on it.
Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

Obsianus Golem

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Mox Jet

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 Emerald

Black Lotus

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

Sol Ring

Mountain

Strip Mine

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

Atog

Sacrifice an artifact: This creature gets +2/+2 until end of turn.