I believe the Hoard Mimic drops from a rare Hoard Mimic fight, not chests. There are other troops which would also appear in “unowned” that have never appeared in chests, such as the 4 Boss troops, Dark Smith, the Tarot troops and the Vault troops. There are many problems in this game, but tonight, this is not one of them.
Must be nice. 25k seals, 4k gem chests & 5k glory chests and no Ascendance. Got 4 more copies of the crappy mythic, but not one copy of Ascendance.
And no Hoard Mimic (or any kind of mimic) after a dozen boss chests. The new update has done nothing but waste my time & resources.
Don’t worry too much about it. I opened all the “adventure chest” keys I got and still didn’t pull any of the epic troops. I’ve burned 150k glory (7500 chests), 2500 glory keys, 1000 gem keys. Gotten 4 more copies of Ahries, but 0 copies of the moon mage. Working as intended, I’m sure.