A lot of these are fairly standard, but its really interesting to see what happens with one of these little guys
Product names, allocation numbers, international versions, pull rates and final card lists can all influence availability and market behavior
If i can add some info on some: The zukan cards are Bandai Carddass, zukan just means pokedex, its not the name of the company
You won't have to pay the commander tax to activate that ability, and activating that ability won't increase the commander tax to pay later.
Mega Gengar ex works well in a dark box style deck, especially paired with Mega Sharpedo ex who can be your big hitter while Mega Gengar ex reduces the amount of prizes your opponent will take, enabling a favorable prize trade
For example, booster packs are considered shadowless when they dont have a 1st edition stamp and their TCG logo is on the bottom