4. Support Gems and Auras
Support gems and auras can also influence charge generation indirectly by enhancing the skills that grant charges or by providing buffs that generate charges. Some auras might give a chance to gain a charge when hit, increasing your passive charge generation.

Strategies for Efficient Charge Generation
Maximize On-Hit Charge Generation: Using fast attack skills that hit multiple enemies can rapidly build charges. Skills like Whirlwind or Cleave (if available in PoE 2) that hit multiple foes are excellent for Path of exile currency stacking charges quickly.

Utilize Defensive Play: If your build leans into blocking or evading, prioritize gear and passives that generate charges from these defensive actions. This approach increases charge uptime, especially in boss fights where attacks are frequent but avoidable.

Balance Offense and Defense: Sometimes, balancing between aggressive charge generation on hit and defensive generation on block or evade creates a smoother play experience and more reliable charge uptime.

Example
A typical Warrior build might use a melee skill that grants an Endurance Charge on every enemy hit, supplemented by passive nodes that provide an additional charge on block, and a unique shield that grants charges when you evade. This combination keeps your Endurance Charges topped up, allowing you to POE currency for sale consume them effectively in crucial moments.