3.18 | Cobra Lash, Herald of Agony, Plague Bringer Build (Work in Progress)

I felt like being creative and try to put together a build of my own after coming back to PoE, haven't played in like 2-3 years or longer. I'm currently at level 42 and I'm not sure if I'm doing things right or if I'm missing something so posting here for some help and advice to improve this build.

Chest| Cobra Lash - GMP - Faster Projectiles - Vicious Projectiles - Chance to Bleed

(GMP = Greater Multiple Projectiles, added Chance to Bleed cause Bleeds fall under ailment as well as poisoned)

MH Dagger| Plague Bearer - Concentrated Effect - Increased Area of Effect

(I find Plague Bearer Synergizes really well with Cobra Lash)

OH Dagger| Chaos Golem - Increased Chaos Damage - Summon Phantasm

(I added this cause just because I'm open to other ideas that may better suit my build)

Helmet| Whirling Blades - Chance to Poison - Chance to Bleed

(I mainly use whirling Blades for movement, used poison and bleed to add damage but I would like ideas and thoughts to improve this)

Gloves | Herald of Agony - GMP, Faster Projectiles, Vicious Projectiles

(I find that Herald of Agony to synergize with Cobra Lash extremely well just don't like how it reserves over 50% of mana pool)

Boots | Currently empty not sure what I could do here if anyone would like to make suggestions I will gladly listen.

Skill Tree so Far at level 42 (haven't done the Labyrinth but plan to go assassin)
https://www.pathofexile.com/fullscreen-passive-skill-tree/3.18.1/AAAABgYBNgW1BnAPqxXwFr8ZihqNIzckiySdLiNLV07HWyZbb1uPXkVfsGJaYqxqjGqTb556f311feONv5Lzkx-XBppkm7Wi2a-8sNi0xbTRu-PA48LswzrEosgUykrfmOLV5ljtQe2i8bP1b_rr-_3-ugABhnTtog==

Boots: CWDT (level 1) - Immortal call (level 3, check that the level required is not higher than what CWDT can support) - Increased Duration Support (lvl this up all the way) - Withering Step (lvl this up all the way)

And then put Withering Step on your left-click on the mouse instead of moving, so that when you click you move and Withering Step gets activated whenever possible. The Increased Duration Support will also support the Immortal Call :)

Thank you for responding I will give that a shot and report back how well I feel it works with my build.