Thanks guys. Someone told me the as my T2 was scrolls, it would be silk so I have biul 2 of them. I will change them for crystal if that is the right one
Yes if your T2 boost is scrolls then your T5 boost is equivalent to scrolls +1, i.e Silk. I did think the silk manu would be producing Royal Velvet though. I could be wrong.
You don't necessarily need two of them. I would start off with one and see how you go for now.
yes you would build silk manu if you are a scrolls booster, they will produce royal velvet as Pauly said, then you take the royal velvet and trade that for the obsidian you are looking for