FairFamily

Isn't that about every special deck summoning in the game (except maybe the new one??)?  Every time I think it would be cool back into the game, I look at something like this and see there's no way I could catch up on more than a decade (probably closer to 15 years actually) of cards/archetypes/etc.   Not to mention the game as a whole speed has shifted from about a 3 to an 11 on speed scale.  I'll just settle for looking at archetype and occasional trivia videos.

It was easier getting back into Pokemon meta, even though I never really followed the meta much to begin with, since there was only a little over 700 mons (and you only have to really know about 1/3 or 1/4 of them).

Well it is every type of extra deck monster. In ARC-V the main focus was on all the extra deck monsters and the main character and his rival could do all of them thanks to the pendulum summon. 

With vrains link summoning was introduced and all other extra deck types nerfed. So as a tribute I performed all extra deck summons including link starting from a pendulum summon.

Yu gi oh meta is indeed not that easy to get into but it is not as difficult as it looks. Power creep turns a lot of cards/archetypes obsolete. 

........I didn't even remember the correct name for the extra deck.......  

Considering my knowledge of the game stopped in 2004/2005 (until a few looks into more recent things).......yeah, most things from back then that didn't get some additional support later are probably long since obsolete.