mtg flip cards summoning sickness Does a creature copied with Mirage Mirror have sickness? Would this card have summoning

This drop is available in limited quantities in both sleek and simple non-foil as well as glittering and glamorous rainbow foil

Until end of turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell

Table of Contents show #31

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

This card isnt widely played because it has a lot of restrictions attached to it