Several mechanics, such as mentor and Battalion , assist Boros in applying continuous pressure against opponents
Pokmon ex are powerful cards with high HP and attack damage
Commander Legends sets usually need a wealth of legendary characters, too, so borrowing from a mostly untapped IP that is overflowing with characters and adventurers fits the bill as well
Others are like Sea Gate Loremaster and Harabaz Druid, which have more potent activated abilities the more allies you have in play
Rayquaza ex has the following attacks: Draco Meteor - 0 damage1 of your opponent's Pokmon is chosen at random 4 times
It seems like the bad planning of the release order of cards (releasing the expansion deck before the half decks led to people not having enough energy cards, not being able to evolve major cards, and all around not having what they needed for new players.) and the limited release in general, may have led to the stopping of releasing Korean language cards until DP