Check masteries and the intended role before choosing a set or weapon SA.
Read the class’s actual weapon masteries and combat skills first. Compare damage, attack speed and critical bonuses for the chosen weapon and activity; an auto-attack bonus does not automatically improve every physical skill.
Check heavy/light armor mastery, shield skills and survival requirements. An optional shield bonus must not be counted with a two-handed weapon or without the required shield. Resistances can matter more than base defense for the intended opponents.
Compare cast responsiveness, mana sustain and survival using the actual class skills and set effects. A nuker’s damage-oriented INT tradeoff is not automatically the best healing or support investment.
Confirm whether the owner is casting, fighting physically or supporting a summon. Verify which stats affect the summon before valuing an owner weapon upgrade for pet damage. For specialized class weapons, read the exact mastery and item restrictions.