Saheeli, Radiant Creator (Borderless)

Whenever you cast an Artificer or artifact spell, you get (an energy counter).
At the beginning of combat on your turn, you may pay . When you do, create a token that's a copy of target permanent you control, except it's a 5/5 artifact creature in addition to its other types and has haste. Sacrifice it at the beginning of the next end step.