If you want to increase PVP, lower the possibility of something terrible happening when you do it. 

In most of the games where there is a ton of PVP, there is virtually no downside to dying. 

If there was no exp loss on death/item dr…

I agree that one of the major problems with making the ronde edo into the DE version of the winter spear is accessibility. That is a problem that can be solved though by tweaking drop rates appropriately. 

I've often thought that one of …

Yep. See. On the db entry, troll doesn't drop Ascroll:  https://l1justice.com/lineage/database/monsters/45477/

However the lindb one does.

Furthermore, the lineage compendium database lists king bugbear as also dropping…

Just add a potion that dlvls the characters to 10 with whatever the stats are. Then people won't do it for that reason at least.

I'm not sure if this was a live change or not, but it would be really helpful, especially at lower levels.

I was looking through the database, and it looks like a number of the FI mobs don't appear to drop Ascroll. On live they all dropped ascroll.