But theres no denying that their artwork is beautiful and they make your promo card collection more diverse, so yeah, grind to pull more of them from solo battles and possibly add Flair to the mix
A few rental decks, however, do require multiple cards before they're unlocked such as the Kanto Fossils Deck
That's nasty
The big limitation is the lack of other Kavu, but Possibility Technician seems borderline playable as your only Kavu (along with a Soulstone Sancturary or two to late game be able to play any exiled cards)
But with brewing the cost to being wrong is tiny, but there is huge value in being right (the 80% winrate you can get with a good brew and the satisfaction and that comes with putting a new deck on the map, winning a big tournament with your own brew, getting a card banned, etc)
While True King of All Calamities is currently on the Forbidden & Limited Card List, it is still an incredibly powerful card that is memorable to this day