mtg flip cards summoning sickness Does a creature copied with Mirage Mirror have sickness? Copy an non summoning sickness?

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Something is bound to hit, and the gains from discovering that and restructuring around it will be huge.

I understand that it is the best artifact in the best deck of the format, but this is not my logic for this list

Creature - Human Rogue Sepulchral Primordial Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) When this creature enters, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control

But you could add in some sacrifice effects to sacrifice the stolen artifact to