Crafting Poison Spark Boots (Stormshroud)

Use Deafening Essences of Torment until you see a second Tier 1 Resistance. This is a 1/35 chance.

If you don't have at least one open Prefix, use a Lesser Eldritch Ember to apply Exarch Dominance. Then, use an Eldritch Orb of Annulment to make room. You might need to do this multiple times.

4

If the reforge filled up your Prefixes, use an Eldritch Orb of Annulment after applying Exarch Dominance (assuming you didn't reforge into high tier +# maximum Life).

5

(25-30)% increased Movement Speed, (13-16)% chance to gain Onslaught for 4 seconds on Kill is best.

6

You must benchcraft +(56-70) to maximum Life so there's no risk of slamming a horrible tier of max Life.

Poison Spark Avoidance

Read the Eldritch Implicit Guide if you need help with crafting the Implicits:

If you have Shock Avoidance elsewhere (Abyss Jewel), 6% increased Action Speed (Exarch) is the best alternative.