Hit-based EA Totem Champ share and feedback

Hey! I made this hit-based EA Champ to exploit Wilma's Requital using Adrenaline and Onslaught. I've been having a ton of fun with it, so I wanted to share it but also get some feedback (it's pretty scuffed).

https://pobb.in/7aak9lAELrZZ

I've spent at most 3 divines on this build so far, thanks to late league prices. Breakdown of expensive pieces:

• +1 fire gems amulet with tri-res, open prefix, and Sovereignty annoint: 1div (sad to say, I slammed that 1-2 phys damage to attacks roll... I forgot to close my eyes first)
• level 5 awakened ele focus with quality: ~140c
• +1 arrow quill rain with good proj speed roll: ~70c
• Empower 3 - 60c
• +1 arrow quiver with good increased damage mods and some resists - 30c
• Ring with res, ele attack damage, and attack speed: ~30c (i think)
• Ghost dance Skin of the lords: 20c

Everything else was <10-15c, since I usually set that as an upper bound when getting gear to fill gaps.

As far as some of the gear choices:

• Champ - permanent Fortify + Onslaught (via Perseverence)
• Wilma's requital - Double dipping attack + cast speed buffs and nodes (like Coordination)
• Perseverence - Onslaught + damage scaling with armour/eva
• Quill rain - Just wanted that crazy attack speed to stack fuses
• Skin of the lords - Easy +2 gems, and access to Ghost dance which is great for defense since we already have some energy shield and have a low health pool
• Abhorrent interrogation - Since totems hit so fast, easy to get 15 stacks. And we get to forget about fire pen.
• Having +2 arrows from bow and quiver means I don't need rain of splinters (expensive) for clear to feel good.

Realistic pinnacle boss DPS is about 7M. That's calculated as: (5.88 attack rate * 6 totems) / 20 fuses * 4M average 20-fuse hit

Sustain is the biggest issue. Vitality + flasks are the biggest source. I have stone golem but it dies so frequently I should just drop it altogether.

As far as improvements, there's lots since this is a pretty scuffed build:

• I'd like to rework the tree to also take advantage of clusters.
• I need to drop Atziri's step to get good rare MS boots with T1 suppress and scorched ground influence mod. This could also let me get more armour to balance it with evasion.
• Possibly switch to another EA setup with mirage archer, since mirage can still do damage, and might let me hit the breakpoint to take advantage of divergent EA (24 fuses, but only 0.6s duration).
• Better flask setup (lol please don't look at my flasks)

I'd love to hear other ideas too, feedback and suggestions welcome. Quill rain is non-negotiable just because I love it so much as an item :)