My full suggestion is here: https://drive.google.com/file/d/1hyhRVv6iDRKUuSBVqd3vgyYRveVtRdbT/view?usp=sharing
I'm proposing a rework of the current Mine Tree and adding 3 specialized Mine Trees (Loaded, Auto, and Defensive). The purpose of this suggestion is to enable builds centered around mines.
Basic Mine Tree:
Tier 1: Mines
-> Current Mines mod. (Unchanged)
Tier 2: Extra Mines
-> +2 Mine construct limit.
Tier 2: Powerful Mines
-> +25% Mine damage, total mine effect, mine trigger radius.
Tier 3: Advanced Mines
-> +1% Mine assembly speed per your level.
-> Unlock mods for specialized mine types.