Id consider it non-canon from a perspective of cards that are printed, but I think we can agree that its canon if anybody wants to consider it so for the convenience of entertainment
you can sequence your activations in such way that on the first activation you make Mirage Mirror an infinite mana outlet, hold priority, and on second activation make Mirage Mirror into any given permanent that nets you infinite mana
While observing the psychology of the detractors of pile shuffling can give us an idea of how they may have arrived at their conclusions, a bad reasoning process doesn't guarantee a false conclusion
Collecting Ravnica Remastered Editor's Note: This article has been updated to clarify the count and content of the traditional foil rare and mythic rare drop slot, and traditional foil retro frame commons of Collector Boosters
Valduk, Keeper of the Flame Valduk, Keeper of the Flame does a great red impression of Kemba, Kha Regent
2 CMC, shuts down noncreature spells such as Torment of Hailfire or Omniscience