The less you have to pay for these types of effects, the better that way, you can start to repopulate the board immediately on the same turn, putting you in position to be the first one that untaps with creatures, and the first to attack again
Villainous launched in 2018
Update: Its been found in a Costco store and seems very real, though no official announcements have been made yet
Right now, this seems to be more true for Lorcana than it is for other trading card games, which often have top tier decks stuffed with cards that are hard to get hold of
There's not really any extra strong interaction between Choco and Keeper of the Nine Gales, but Choco wants to be attacking with as many birds as possible, so the basic synergy holds
Their primary purpose is to celebrate the community, reward tournament participation, and commemorate special events in the Disney and TCG worlds