(2018-07-13) If Mirror Image somehow enters the battlefield at the same time as another creature, it can't become a copy of that creature
Its a solid card, and likely playable in Commander, but it shines most brightly when viewed through the lens of flavour and its wider implications for the overall Magic narrative
If two mirrors are facing each other, you put two +1/+1 counters on the creature, not an infinite number
Foxglove Nine-Tail White Fox Opal-Eye, Konda's Yojimbo Pearl-Ear, Imperial Advisor Pious Kitsune Rune-Tail, Kitsune Ascendant Samurai of the Pale Curtain Selfless Samurai Sensei Golden-Tail Seven-Tail Mentor Silverchase Fox Silverstorm Samurai Split-Tail Miko Turncoat Kunoichi Vulpikeet Vulpine Goliath Vulpine Harvester Werefox Bodyguard Zirda, the Dawnwaker
Sure, Yargle and Multani only have six toughness and will die to basically any removal spell that's not direct damage, but who cares