Conjurer's Bauble

{T}, Sacrifice Conjurer's Bauble: Put up to one target card from your graveyard on the bottom of your library. Draw a card.

Disciple of the Vault

Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

{R}, Sacrifice Pyrite Spellbomb: It deals 2 damage to any target.
{1}, Sacrifice Pyrite Spellbomb: Draw a card.

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)

Flying
Whenever you cast an artifact spell, you may untap target creature.

Enchant creature
Enchanted creature has "{T}: This creature deals 1 damage to target player or planeswalker. You draw a card."

Sacrifice Bottle Gnomes: You gain 3 life.

{T}: Target player exiles a card from their graveyard.
{1}, Exile Relic of Progenitus: Exile all graveyards. Draw a card.

{1}, {T}, Sacrifice Chromatic Sphere: Add one mana of any color. Draw a card.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Draw two cards.

{T}, Tap an untapped creature you control: Add one mana of any color.

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

{1}, {T}, Sacrifice Chromatic Star: Add one mana of any color.
When Chromatic Star is put into a graveyard from the battlefield, draw a card.

Battered Golem doesn't untap during your untap step.
Whenever an artifact enters, you may untap Battered Golem.