-Increased Attack Speed
This is valuable as your abilities are all attacks. Use a calculator to see where the breakpoints are. This will be one of your greatest damage increases, but also a huge mana sink. Insight merc is recommended.
-Fast Cast Rate
Irrelevant except for CtA prebuff or teleport. In any case, amazons have awful cast rate breakpoints, so you can never achieve something meaningful here. I’d disregard it completely.
-Mana/life leech
Only works with the physical portion of your attack, as you already noted. You actually deliver a physical attack/throw to the targeted monster. Your lightning skill then procs, regardless of whether you actually hit. The life/mana leech is calculated based on the physical damage dealt, so you need to land the hit to recover. Note that Lightning Bolt will convert physical damage to lightning, rendering it less effective for leeching than your other abilities. Also note that your initial attack, if it is a throw, can pierce targets and hit multiple times. This not only makes Lighting Fury amazing, but provides additional leech.
-Hit recovery
Great to have. You will go into hit recovery animation whenever you receive damage amounting to more than 1/12 of your life. You cannot do anything until the animation is finished. Amazons have good FHR tables. You start from 11 frames and drop it to 8 with just 20 FHR. 20/32/52 for 8/7/6 frames are reasonable breakpoints to hit probably without much investment. The full table is something like
-0—6–13–20–32–52–86 fhr
11-10—9—8—7—6—5 frames
Infinity is great, but I consider it a luxury. There are 2 Bers you need to find - mind that
1 pt in jab with some crushing blow and an adequate mercenary does well against immunes. You can also just skip most of them. There are wands with Lower resist charges, if you use such stuff. I find it tedious, plus amazons are slow casters. Still, you use such wands, use the cube to repair charges.
I can’t think of much more. You don’t need AR, have no chance of getting respectable defense… High block is a good thing to have if you plan on using CS more than Fury. The dexterity investment pays off. Amazons also have great blocking tables. She has the slowest blocking animation with a swinging weapon, but javelins are thrusting, and there she shines. Her blocking speed is on par with a paladin (without holy shield).
0–13–32–86 block rate
5—4—3—2 frames
Oh, and don’t forget that pierce works wonders with Lightning Fury. You should have enough of it with all +Skills, but if you don’t, Razortail might just be better than Thundergod’s Vigor, at least until you equip your godly items.
Hope that helps. Good luck!