Feldon's Cane

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

Library of Alexandria

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

Desert Twister

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.

Howling Mine

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

Mox Emerald

Maze of Ith

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

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Wall of Ice

Regrowth

Return target card from your graveyard to your hand.

Prevent all combat damage that would be dealt this turn.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Tranquility

Sol Ring

Storm Seeker

Storm Seeker deals damage to target player equal to the number of cards in that player's hand.

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.