Nikola Tesla

During your Main Phase, you may tap Nikola
Tesla to choose one of the following effects:
{t}: Untap target artifact you control.
{t}: Tap target artifact an opponent controls. It
doesn't untap during its controller's next turn.
Once per turn, when Nikola Tesla attacks, you
may pay {u}/{2}. If you do, Nikola Tesla gains
+2/+0 until end of turn.