Ramping mana, providing utility, and changing the rules of the game to better suit their owners needs, its easy to forget that removal for these types of cards is as important as removal for dangerous creatures
(Egawa designed the Mega Latias in this set.) Whats more extraordinary is that the Gardevoir card was designed by an artist brand new to the TCG, Raita Kazama, who has previously designed incredible packaging and sleeves for the franchise, but never a card
Embercleave, Duelists Heritage, and other similar options can allow you to dig 16 cards (or more) deep into your deck, playing every single Dinosaur you see
Primarily, though, criticisms tend to focus on the credentials of the new graders
Be sure to check out the YuGiOh Master Duel banlist for changes to online play, too