Liquimetal Coating

{T}: Target permanent becomes an artifact in addition to its other types until end of turn.

Mountain

Aladdin

{1}{R}{R}, {T}: Gain control of target artifact for as long as you control Aladdin.

Cleansing Wildfire

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Draw a card.

Thran Forge

{2}: Until end of turn, target nonartifact creature gets +1/+0 and becomes an artifact in addition to its other types.

Sol Ring

Hellkite Tyrant

Flying, trample
Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls.
At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.

Liquimetal Torque

{T}: Add {C}.
{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

Chandler

{R}{R}{R}, {T}: Destroy target artifact creature.

Blood Moon

Mycosynth Lattice

All permanents are artifacts in addition to their other types.
All cards that aren't on the battlefield, spells, and permanents are colorless.
Players may spend mana as though it were mana of any color.

Toymaker

{1}, {T}, Discard a card: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn. (It retains its abilities.)

Pyretic Ritual

Joven

{R}{R}{R}, {T}: Destroy target noncreature artifact.

Seething Song

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Fire Diamond

Fire Diamond enters tapped.
{T}: Add {R}.

Unexpected Windfall

As an additional cost to cast this spell, discard a card.
Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")