Lost Sword gear system is like any other RPG; from white for trash gear all the way to yellow for legendary.
We don’t recommend upgrading every single piece of gear unless you’re a new player and have nothing else to equip.
If you get at least 2 good lines, you can upgrade that piece to use until something better drops. Min maxing gear in this game takes ages so be patient.
You can completely ignore flat stats. They don’t scale well considering the numbers you can see in this game so % will always be better.
Also please remember this is only a reference. Each character is different and will require stats based on their skills.
ATK% >= Crit Damage% > Ignore Damage Reduction%
Critical Resistance Increase% >>> Defense% > Block Chance Increase%
For trinkets main stats are more important than special stats.
When it comes to special stats, anything with % (pretty sure you can only get HP in the case of trinkets).
The important part is the main stats depending on the item. As a general reference:
Runes can only get 4 stats; Priority, HP, HP% and Critical Damage Increase%.
It’s a PVP stat. You can completely ignore it in my opinion.
It will allow your units to use their skills faster than your opponent (ONLY IN PVP).
Considering some of the lines you can get are pretty good, this is by far the worst stat you can get on any piece of gear.