Myr Enforcer

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

Wind-Scarred Crag

Wind-Scarred Crag enters tapped.
When Wind-Scarred Crag enters, you gain 1 life.
{T}: Add {R} or {W}.

Galvanic Blast

Galvanic Blast deals 2 damage to any target.
Metalcraft — Galvanic Blast deals 4 damage instead if you control three or more artifacts.

Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.

Shield Sphere

Defender
Whenever Shield Sphere blocks, put a -0/-1 counter on it.

Ancient Den

Frogmite

Plains

Ardent Recruit

Metalcraft — Ardent Recruit gets +2/+2 as long as you control three or more artifacts.

Ornithopter

Atog

Sacrifice an artifact: Atog gets +2/+2 until end of turn.

Navigator's Compass

When Navigator's Compass enters, you gain 3 life.
{T}: Until end of turn, target land you control becomes the basic land type of your choice in addition to its other types.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Mountain

Temur Battle Rage

Target creature gains double strike until end of turn.
Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Glint Hawk

Flying
When Glint Hawk enters, sacrifice it unless you return an artifact you control to its owner's hand.

Phyrexian Walker

Great Furnace

Fragmentize

Destroy target artifact or enchantment with mana value 4 or less.

Feldon's Cane

{T}, Exile Feldon's Cane: Shuffle your graveyard into your library.

Pyroblast

Choose one —
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.