Guys, regarding the slayer matters, we can know a lot of informations simply from this link:
FUG (퍼그/FUG, Peogeu), led by Grace Mirchea Luslec, is the most dangerous and secretive criminal syndicate in the Tower. Their official members wear the "Mark of the Slayer". Although FUG’s true motives are not clearly known, it is true without a doubt that they exist in the shadows of the Tower...
towerofgod.fandom.com
I know it's made by the fans. But so far, the information given already quite accurate.
So. It was stated that:
- the structure of slayer is consist of 11 slayers. There's no the 12nd slayers position.
- these 11 slayers was intended to be a match against Zahard + 10 Family Head. So we can concluded that it was made for 11 vs 11.
- the big point here is that there are only 7 slayers active out of 11 position available.
- and then, the information was added with the another info, the remaining 4 seats actually are VACANT.
- thus, if baam ever succeeded become the next slayer, he won't be become the number 12th. I don't know what number will be given to him. Because not enough information given.(I'm prefer using facts rather than assumption)
- and lastly, the number of slayers given is based on random method. Not based on history of who came first (except luslec, he is the founding father). Because slayer White, as his title of ancient slayer, means he was come earlier than Yama.
And then, for who slayer will target who, so far is:
1. Slayer Luslec = target zahard + 10 FH
2. Baam = target Zahard
3. Slayer Yama = target Lo po bia (as his first priority) + remaining 9 FH
4. Slayer White = only target his father (Arie Hon)
5. Slayer Karaka = only target Zahard
6. slayer Imort = unknown target
7. slayer Pephomero Seto = unknown target