The earlier a player can get to high-cost Characters, the better a shot they have at winning against the other two Lorcana starters
Readying up a character so you can have them take a second game action before your turn ends is a fantastic function for most ruby decks to work with, even if they cant quest for a second time
Since then, Mickey has learned a few new tricks and brought them with him to Lorcana
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For just three Ink, Lilo can grant an Alien character Challenger +2 and the abilty to challenge ready characters, making it much easier to remove pesky foes from play
Jumping into TCGs for the first time with Ruby/Emerald might not be the best move, for example, but it's an excellent choice with the right tactics