A large part of the game is centred on searching for clues to progress the narrative before one or more nasty things happens to the players
Other products, such as Tins, Battle Stadiums, and Boxes: Usually, these products are based on a Promo Card, so if you redeem their Code Card, you'll only get the Promo Card
Against ABC, flipping down their first summoned Union monster would prevent Union Hangar from resolving successfully, and most of the time this would prevent ABC-Dragon Buster from landing on the floor that turn, providing me with a precious one turn to deal as much damage, OTK-ing if I can
Unfortunately, there are not official Pokmon card price checker, but you can use the next sources for Pokmon card price checks: eBay has the most significant number of Pokmon cards sold online
(You can't use more than 1 GX attack in a game.) Attack #1: [1PPP] Cosmic Burn (230) This Pokmon can't use Cosmic Burn during your next turn
If being Limited completely locks them out of being useful, they may instead be downgraded to a Semi-Limited or even Unlimited status