0 cards from McDonalds 2021 are currently worth $100 or more ungraded
(12 Skill Drain T.G., 4 Flamvell T.G., 3 T.G., 3 Plant T.G., 1 Falcon T.G., 1 Rabbit T.G.) 19 Gladiator Beast (18 Gladiator Beast, 1 A Lives Gladiator Beast) 16 Scrap 13 Dragunity 12 Dark World 11 Lightsworn (7 Lightsworn, 1 Blackwing Lightsworn, 1 Debris Lightsworn, 1 Junk Doppel Lightsworn, 1 Six Samurai Lightsworn) 9 Debris Dandy 8 Gravekeeper (4 Gravekeeper, 4 Skill Drain Gravekeeper) 8 Karakuri (5 Karakuri, 2 Machina Karakuri, 1 Machina Gadget Karakuri 7 Frog (5 Frog Monarch, 2 Frog Synchro) 4 Zombie Synchro (2 Diva Zombie Synchro, 2 Plant Zombie Synchro) 3 Coelacanth 3 Jurrac (2 T.G
If a buyer or shop quotes a price, it is reasonable to ask what data they used
If you want extra protection and longer card life, double sleeving offers great value
There are also deck boxes and play mats available that are designed to resemble suit cases covered in travel stickers