They struggle to remove high-power Characters like OP04-031-donquixote-doflamingo

Mime #123 - Scyther #124 - Jynx ex #125 - Electabuzz #126 - Magmar #127 - Pinsir #128 - Tauros #129 - Magikarp #130 - Gyarados #131 - Lapras #132 - Ditto #133 - Eevee #134 - Vaporeon #135 - Jolteon #136 - Flareon #137 - Porygon #138 - Omanyte #139 - Omastar #140 - Kabuto #141 - Kabutops #142 - Aerodactyl #143 - Snorlax #144 - Articuno #145 - Zapdos ex #146 - Moltres #147 - Dratini #148 - Dragonair #149 - Dragonite #150 - Mewtwo #151 - Mew ex #152 - Energy Sticker #153 - Snatch Arm #154 - Old Helix Fossil #155 - Old Dome Fossil #156 - Old Amber #157 - Safety Goggles #158 - Big Balloon #159 - Extra-Tight Belt #160 - Leftovers #161 - Erika's Invitation #162 - Giovanni's Charisma #163 - Daisy's Assistance #164 - Bill's Transfer #165 - Cycling Road #166 - Bulbasaur #167 - Ivysaur #168 - Charmander #169 - Charmeleon #170 - Squirtle #171 - Wartortle #172 - Caterpie #173 - Pikachu #174 - Nidoking #175 - Psyduck #176 - Poliwhirl #177 - Machoke #178 - Tangela #179 - Mr

League Cards essentially replaced older Trainer Cards, and it's possible to trade your League Card with friends using Y-Comm
Other goodies can be bought by different methods
by Imperial Publishing - Gamefound
Avatar: The Last Airbender play boosters include the art of Hori Airi, Kozato, and Airi Yoshihisa, as seen on Mai, Scornful Striker, Firebending Student, and Foggy Swamp Spirit Keeper