The Absolute Solver

Eminence — While this creature is in the command zone or battlefield each creature in play become artifacts along with their current type, artifacts you control cost {1} less to cast

While this creature is in play its owner may activate effects of any artifact in play

{r} — target player creates a 1/1 white and black "drone" artifact creature token with "Sacrifice this creature, target player gains 1 life and this creatures owner loses 1 life"