Energy (15)

Amazons start with 50 mana and 15 energy; they gain 1.5 mana per clvl. Every point of energy adds 1.5 mana.

Unlike life, mana refills over time: the more mana you have, the more mana you regenerate per second. (See Magezons and refer to the Mana Regeneration section of VenomousVixen's Complete Sorceress Guide.)

For most conventional builds, mana won't be a problem because most bowazon skills don't use up a lot of mana and because she can leech mana with the proper equipment: the more damage your bowazon does, the more mana she can afford to burn because she can quickly refill her orb with one or two attacks. I tend not to invest in energy at all, and recommend the same for most builds that depend mostly on physical damage: 1.5 mana per attribute point is is a lousy return on your investment.

There are exceptions to this rule, of course. The most noticable drain on a bowazon's mana will be a high-level valkyrie, which won't be too much of a problem because by the time a high-level valkyrie finally dies, you'll have leeched back at least three times the mana needed to summon her in the first place. With the advent of v1.10, bowazons have become more dependent on elemental arrows, since these can inflict more damage per shot than most physical attacks, so a bowazon can depend on draining her mana pool very quickly when she uses elemental arrows. Despite these exceptions, 1.5 mana per point placed into energy is still a lousy investment, so amazons will find it more advantageous to use items that grant the bowazon mana and mana leeching equipment than actually investing in energy.

Where can I get extra energy?

Equipment:

Rare rings, magical helms: +1-15 energy.

Rare amulets, circlets, magical rings: +16-20 energy.

Magical amulets, circlets: +21-30 energy.

Various unique, set, and rune word items give varying amounts of energy.

Sockets:

Rare jewels of knowledge: +4-9 energy.

Lum rune: +10 energy when socketed in anything.

Charms:

Annihilus small charm: +10-20 energy.

Hellfire Torch large charm: +10-20 energy.

Where can I get extra mana?

Equipment:

Rare body armor, boots, gloves: +1-40 mana.

Rare amulets, circlets, rings: +41-60 mana.

Magical amulets, circlets, rings: +61-120 mana.

Magical amulets, circlets: Memory prefix (+{0.5/clvl} mana).

Magical circlets: Elephant prefix (+{0.25/clvl} mana & mana).

Various unique, set, and rune word items give varying amounts of mana.

Sockets:

Sapphires of varying quality in helms and armor: +10-38 mana.

Charms:

Small charms: +1-17 mana.

Large charms: +2-34 mana.

Grand charms: +3-59 mana.

It's come to my attention that one of the ladder-only rune words, Insight, offers a slvl-12~17 Meditation aura (575~675% mana regeneration) when equipped; it can be placed in a staff or a polearm. Since the required runes for Insight are relatively easy to obtain (Ral + Tir + Tal + Sol), any bowazon would be well-advised to place this on an Act 2 hireling as soon as possible. This is by far the best option for mana regeneration an amazon can get her hands on: even with base energy, a bowazon can refill an empty mana orb in under 10 seconds with this aura active.