Rax, the Aether Converter

{u}{u}{r}{r}{g}{g}: you get {e}{e}{e}
(three energy counters)
Pay {e}{e}{e}{e}{e}: exile target permanent you
control, then return it to the battlefield under
your control. Activate this only on your turn.
Other Activated or triggered abilities cost one less {e},
this can not reduce the cost to less then one {e}