War Report

You gain life equal to the number of creatures on the battlefield plus the number of artifacts on the battlefield.

Ghalma's Warden

Metalcraft — This creature gets +2/+2 as long as you control three or more artifacts.

Mana Tithe

Counter target spell unless its controller pays {1}.

Ardent Recruit

Basilica Skullbomb

{1}, Sacrifice this artifact: Draw a card.
{2}{W}, Sacrifice this artifact: Target creature you control gets +2/+2 and gains flying until end of turn. Draw a card. Activate only as a sorcery.

Plains

Auriok Sunchaser

Metalcraft — As long as you control three or more artifacts, this creature gets +2/+2 and has flying.

Apostle's Blessing

({W/P} can be paid with either {W} or 2 life.)
Target artifact or creature you control gains protection from artifacts or from the color of your choice until end of turn.

Ancient Den

Myr Retriever

When this creature dies, return another target artifact card from your graveyard to your hand.

Crimson Acolyte

Protection from red
{W}: Target creature gains protection from red until end of turn.

Dispeller's Capsule

{2}{W}, {T}, Sacrifice this artifact: Destroy target artifact or enchantment.

Blacksmith's Skill

Target permanent gains hexproof and indestructible until end of turn. If it's an artifact creature, it gets +2/+2 until end of turn.

Mandible Justiciar

Lifelink
Whenever another artifact you control enters, this creature gets +1/+1 until end of turn.

Darksteel Citadel

Lembas

When this artifact enters, scry 1, then draw a card.
{2}, {T}, Sacrifice this artifact: You gain 3 life.
When this artifact is put into a graveyard from the battlefield, its owner shuffles it into their library.

Court Homunculus

This creature gets +1/+1 as long as you control another artifact.

Filigree Familiar

When this creature enters, you gain 2 life.
When this creature dies, draw a card.