Bronze Guardian

Double strike
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Other artifacts you control have ward {2}.
Bronze Guardian's power is equal to the number of artifacts you control.

Astelli Reclaimer

Flying
When this creature enters, return target noncreature, nonland permanent card with mana value X or less from your graveyard to the battlefield, where X is the amount of mana spent to cast this creature.
Warp {2}{W}

Salvation Engine

Other artifact creatures you control get +2/+2.
Whenever this Vehicle attacks, return up to one target artifact card from your graveyard to the battlefield.
Crew 6

Dispatch

Tap target creature.
Metalcraft — If you control three or more artifacts, exile that creature.

Voyager Quickwelder

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

White Auracite

When this artifact enters, exile target nonland permanent an opponent controls until this artifact leaves the battlefield.
{T}: Add {W}.

Monastery Mentor

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, create a 1/1 white Monk creature token with prowess.

Adagia, Windswept Bastion

This land enters tapped.
{T}: Add {W}.
Station (Tap another creature you control: Put charge counters equal to its power on this Planet. Station only as a sorcery.)
STATION 12+
{3}{W}, {T}: Create a token that's a copy of target artifact or enchantment you control, except it's legendary. Activate only as a sorcery.

Organic Extinction

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Destroy all nonartifact creatures.

Faith & Grief

Return up to two target artifact and/or enchantment cards from your graveyard to your hand. (Then exile this card. You may play the land later from exile.)