Moving Forge

Moving Forge enters the battlefield tapped
{t}: Add {c}{c} to your mana pool.
If Moving Forge becomes a target of spell or
ability controlled by your opponent, you may
exile Moving Forge, than return it to the
battlefield during next endstep. This ability
triggers only ones each turn.
{5},{t}: Create a copy of a target artifact spell in
your graveyard. It enetrs the battlefield tapped.