{T}: Add {C}.

{1}: Mishra’s Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It’s still a land.

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

{T}: Prevent the next 1 damage that would be dealt to target creature this turn.

{T}: Add {C}.

{T}, Sacrifice Strip Mine: Destroy target land.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)