>>103708275
The bettel ones are very jokey. The holostars JP ones are a little sadder, follows the format and look of an OCG card but is also clearly unplayable, "infinite health" and meaningless abilities and such.

Interestingly they appear to be optional. From clicking around a bit in the holoshop (so dogshit slow and terrible these days) you've got dudes like Oga and Fuma opting for them, but Astel and Roberu didn't do them.