Psycho_Mantis
Banned
In regards to upgrades, it appears you need some material....not just blood echo's. This makes the decisions much more concrete rather than trial and error.
Yeah in previous games the material was easy to get so even if you levelled up an early weapon you still had plenty materials to upgrade weapons you got later. Materials only got extremely rare right at the end of a weapons upgrade path so its advised not to go all the way to the end until you are sure you will use that weapon.
This was in Souls. I have little idea how the upgrade system works in Bloodborne unfortunately :/