I've noticed something else, this is probably been said before, and obvious, but still
Possessed weapons seem to have built tiers, like green-blue-purple style.
If the possessed weapon has no stats, just damage, its a green possessed. If it has 2, its blue, and 3 for purple. Whats also cool, is that they have higher base damage if its purple.
Two possesed Scythes I found, for instance. One Scythe has 113-160 damage, with 1 extra stat. Other is 120-170 damage, with two stats. Same level, no upgrades done.
As I said, probably obvious, and been said, but interesting to me.