Shambling Suit

Shambling Suit's power is equal to the number of artifacts and/or enchantments you control.

Corridor Monitor

When this creature enters, untap target artifact or creature you control.

Mystic Forge

You may look at the top card of your library any time.
You may cast artifact spells and colorless spells from the top of your library.
{T}, Pay 1 life: Exile the top card of your library.

Witching Well

When this artifact enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
{3}{U}, Sacrifice this artifact: Draw two cards.

Steel Overseer

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