Being able to snag Dryad of the Ilysian Grove or Primeval Titan along with sideboard silver-bullets like Foundation Breaker or Knight of Autumn would make various Valakut, the Molten Pinnacle decks incredibly consistent
This would be great for a Local Game Store to have printed when running a Raid Format night
While this didnt lock out players from using Xyz and Synchro monsters altogether, the loss of their abilities essentially turned them into costly normal monsters not worth the cost of being summoned to the field
Kaya, Orzhov Usurper Spoiled to a loud sigh from a lot of players (people in my playgroup were especially sad), Kaya, Orzhov Usurper is no Liliana of the Veil or even Liliana, the Last Hope
So far, three Mega Evolution expansions have been released, with Ascended Heroes (January 30th), Perfect Order (March 27th), and the newest set, Chaos Rising (May 22)
That said, this was a trend that happened in Hidden Fates as well, with several popular shiny baby Pokemon outranking their Full Art counterparts