They ( usually ) know precisely which sets are in a given Standard rotation, and most rares and mythics are designed with Standards balance in mind
I think this green token-making machine will fit right into a mono-green Nissa, Worldwaker deck and start showing off how tricky morph creatures can really be
Advanced Search Sets Random Syntax Amoeboid Changeling Archangel Archangel Avacyn Archangel Elspeth Archangel of Strife Archangel of Thune Archangel of Thune Archangel of Tithes Archangel of Wrath Archangel's Light Avian Changeling Change of Fortune Change of Heart Change of Plans Change the Equation Changeling Berserker Changeling Hero Changeling Outcast Changeling Sentinel Changeling Titan Changeling Wayfinder Chomping Changeling Cultural Exchange Empyrial Archangel Exchange of Words Exquisite Archangel Fire-Belly Changeling Game-Trail Changeling Ghostly Changeling Grave Exchange Icatian Moneychanger Indomitable Archangel Liesa, Forgotten Archangel Lluwen, Exchange Student Lord of Change Maelstrom Archangel Maelstrom Archangel Avatar Moonglove Changeling Mothdust Changeling Omni-Changeling Opal Archangel Quickchange Radiant, Archangel Radiant, Serra Archangel Razia, Boros Archangel Resolute Archangel Sizzling Changeling Skeletal Changeling Soul Exchange Sublime Archangel Turtleshell Changeling Valiant Changeling Vault of the Archangel Venomous Changeling War-Spike Changeling Webweaver Changeling Winds of Change Woodland Changeling
Things like Yorion, Sky Nomad and Airbender Ascension make for some cool interactions
Lets stick with the Miku example and focus on foil Elvish Mystic, the bonus inclusion for the first Miku drop
You reveal five, a foe separates them, and you draw one stack, so this is a guaranteed three of the worst cards or two of the best whichever makes sense
