Sunscorched Desert

When this land enters, it deals 1 damage to target player or planeswalker.
{T}: Add {C}.

Surgical Extraction

({B/P} can be paid with either {B} or 2 life.)
Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles.

Inventors' Fair

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life.
{T}: Add {C}.
{4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

Ornithopter of Paradise

Silverbluff Bridge

This land enters tapped.
Indestructible
{T}: Add {U} or {R}.

Howling Mine

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

Darksteel Citadel

Feedback Bolt

Feedback Bolt deals damage to target player or planeswalker equal to the number of artifacts you control.

Treasure Vault

{T}: Add {C}.
{X}{X}, {T}, Sacrifice this land: Create X Treasure tokens.

Etherium Sculptor

Artifact spells you cast cost {1} less to cast.

Welding Jar

Sacrifice this artifact: Regenerate target artifact.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Elixir of Immortality

{2}, {T}: You gain 5 life. Shuffle this artifact and your graveyard into their owner's library.

Wrenn's Resolve

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Ornithopter

Font of Mythos

At the beginning of each player's draw step, that player draws two additional cards.

Cloud Key

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost {1} less to cast.