Tezzeret the Seeker

+1: Untap up to two target artifacts.
−X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

Infantry Veteran

{T}: Target attacking creature gets +1/+1 until end of turn.

Arcbound Worker

Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Steel Wall

Runed Servitor

When this creature dies, each player draws a card.

Silver Myr

Steel Overseer

{T}: Put a +1/+1 counter on each artifact creature you control.

Assembly-Worker

{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Serrated Biskelion

{T}: Put a -1/-1 counter on this creature and a -1/-1 counter on target creature.

Esperzoa

Flying
At the beginning of your upkeep, return an artifact you control to its owner's hand.

Master of Etherium

Master of Etherium's power and toughness are each equal to the number of artifacts you control.
Other artifact creatures you control get +1/+1.

Trinket Mage

When this creature enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle.

Loyal Sentry

When this creature blocks a creature, destroy that creature and this creature.

Clockwork Condor

Flying
This creature enters with three +1/+1 counters on it.
Whenever this creature attacks or blocks, remove a +1/+1 counter from it at end of combat.

Frogmite

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

Juggernaut Peddler

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.

Duel Decks: Elspeth vs. Tezzeret