Myr Servitor

At the beginning of your upkeep, if Myr Servitor is on the battlefield, each player returns all cards named Myr Servitor from their graveyard to the battlefield.

Workshop Assistant

When Workshop Assistant dies, return another target artifact card from your graveyard to your hand.

Mental Note

Ashnod's Altar

Golem Foundry

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.
Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

Snow-Covered Island

Preordain

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Sylvok Lifestaff

Equipped creature gets +1/+0.
Whenever equipped creature dies, you gain 3 life.
Equip {1}

Thought Scour

Target player mills two cards.
Draw a card.

Careful Study

Etherium Sculptor

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

Spire Golem

Affinity for Islands (This spell costs {1} less to cast for each Island you control.)
Flying