Finally, though not quite at the level of cards featuring protagonists from even earlier generations, the nostalgia factor might be in play as well
You can see a couple new examples below
Subsequent printings corrected the credit to Kinebuchi, and this is the single most important identifier for the original version: Original 1996 glossy version: credits "Ken Sugimori" (incorrect)
Your typical tribal cards are here, like Unclaimed Territory, Path of Ancestry, and - if you have the money - Cavern of Souls, but zombies in particular get a little extra love from Onslaught 's Unholy Grotto
Pick 4 or 5 Basic Pokemon and have about 3 or 4 copies of each one
Due to LGPE events directly injecting the gift Pokmon into the recipient's boxes, they are fundamentally different from the events of Generations 4-7 (which have a delivery person appear in-game whom you talk to in order to receive the gift)