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

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

Sacrifice an artifact: Put a +1/+1 counter on this creature. 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.)

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

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.

Flying

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) This creature can't be blocked except by creatures with flying or reach.

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

{T}: Add {C}. {1}: This land becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land. {1}, {T}: Target Blinkmoth creature gets +1/+1 until end of turn.

Indestructible {T}: Add {C}.

At the beginning of the end step, if you control no artifacts, sacrifice this land. {T}: Add one mana of any color.

{T}: Add {C}. {1}: This land becomes a 1/1 Phyrexian Blinkmoth artifact creature with flying and infect until end of turn. It's still a land. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

({T}: Add {R}.)