Back in its prime, Bloodbraid Elf could cascade down to any number of value cards like Maelstrom Pulse or Terminate
There seems like thered be too many instances of having Sylvia Brightspear on the field and a hand of knights, or Khorvath Brightflame on the field with a field full of dragons (that's rarely a bad thing, but I think Ive made my point)
(7/23/2021) Dungeon cards are not part of a player's deck or sideboard
By connecting the Dark-type to two of [the five core types], we believe we managed to increase the range of strategies available to players. Update : The folks over at PokeBeach did a thorough breakdown of what these changes to Weakness mean for the game and even made a chart to simplify things
Now, they are being adapted and localized for release in the aforementioned regions
Keep an eye out for events that reward you with Mastery XP, as well