Since February of 2018 I have successfully secured every new Mythic released using only Glory, Glory Keys, or Gem Keys. On Thursday, April 11th, 2019, my streak came to an end. After blowing through all my resources (including the guild seals I had been successfully hoarding for over a year) the Queen of Sin managed to evade me.
RIP streak. You were fun while you lasted.
Silver Lining: I was able to ascend an insane amount of troops