I am bit confused with these. Poison attacks are mitigated by armor, but are they physical attacks?
1. Precise strikes increase critical damage of physical attacks.
2. Mighty increases physical damage
3. Thaumaturge increases poison, disease and magic damage.
4. Piercing increases amount of armor physical attacks ignore.
If we use lethal arrow as example, which ones affect it? 3. clearly helps and 2. won't, but how about 1 and 4? I presume they do as lethal arrow uses weapon critical.