Based on community data from thousands of pack openings, here are the approximate pull rates
A closer look at the card might tip you off to its special status, but many cards from this era share similar designs and are far from valuable or distinct, so this one is a bit of a surprise unless you're familiar with it
However, I feel like it is also charming to build a gauntlet of decks that all check each other
Dark Simurgh can also be advanced summoned, so if you have some left over in your hand, you can use it as a release material
While Karn and Narset ended up restricted in Vintage and Teferi banned from several formats, it was the tantalizing trickster who wound up banned in Standard, Pioneer, Modern, Historic, and Legacy
Here's where that darker printing or waxy feel comes in