The one single thread running through all of them, however, is their ability to force the opponent into an action, or prevent them from performing an action
Pokemon Card Strategy: So as far as strategy goes, since Feebas has a stage 1 evolution in Milotic, there is absolutely no reason to put this card into the active Pokemon spot if it hasn't evolved into Milotic
Note that I dont typically build for optimization, and most decks including this one is built for a casual, interactive play experience that lasts at least an hour where everyone gets to a chance to have their deck do the thing before the game ends
This is especially impactful in the Danger/Dark World FTK strategy, as it triggers many of that deck's most powerful effects
Aside from cash prizes, the winners from each division get their deck copied and replicated as special sets for the public to purchase and try out these winning decks for themselves
Possibly, it is popular simply because its Charizard - and we all love that fire starter