Its ability to quickly end games or remove threats makes it highly sought after, especially in a meta where speed and efficiency are paramount
Players who buy Collector Boosters enjoy them, and we have no plans to change anything about them (well, big picture, they're customized to fit the set they go with, so they do evolve over time)
Recurring Boss: Again, The Rival plays this role, running up and stopping you from proceeding in several spots while forcing you to fight him, including as the first trainer battle in the game, and again, whichever starter you pick, he will steal the Pokmon who is strong against it (The Rival now has his own battle theme instead of the normal trainer battle theme)
These can be hard to find and even harder to pull by chance, so it is a nice surprise when you do find one