Baleful Strix

Flying, deathtouch
When this creature enters, draw a card.

Etched Champion

Metalcraft — This creature has protection from each color as long as you control three or more artifacts.

Equipped creature gets +1/+0 for each artifact you control.
{B}{B}: Attach this Equipment to target creature you control.
Equip {1}

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

Exile target creature you control, then return that card to the battlefield under your control.

Flying
Whenever another artifact you control enters, this creature gets +2/+2 until end of turn.

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

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

Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells.

This land enters tapped.
{T}: Add {W}, {U}, or {B}.

Flying
When this creature enters, you may search your library for an artifact creature card, reveal it, put it into your hand. then shuffle.

Untap all artifacts you control during each other player's untap step.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.