Exploiter's Spaceport

Enters the battlefield tapped
{t}: Add {u} to your mana pool.
{5}{t}: Sacrifice Exploiter's Spaceport and search your library for a mono blue artifact creature card, reveal it and shuffle your library then place that card on top of it.
"Why not just let the Non-Corporals decimate them
and we can just turn a blind eye?" -Elder Makarov