Assassin/Ninja Help Need Feedback On This Thrunda Ripsaw Build

ETFA Thrunda Ripsaw Spell Steal: https://wynndata.tk/s/lgei5a

I haven't played assassin yet and I'm not familiar with making builds for it, so I'd appreciate feedback from an endgame assassin concerning what would make this build more viable in combat. I'd like to keep it ETFA, though.

 

as of now, ETFA spell assassin builds lack a lot of support, due to TFA having primarily third spell support, despite 1st spell being assassin's primary damage

i'm too tired to make a good build now, but i might suggest sprintguard leggings for -26% first spell

 

I'm not expecting quick replies because of time zones, but here's an adjusted TWFA build: https://wynndata.tk/s/rv1pd8. It's a little meh (definitely worse than a standard 3-element build), so it looks to me like assassin isn't fit for tanky-ish quad builds...yet.

 

yeah, tanky quad support in general is a bit lacking because tanks suck right now
by2011 has a nice meme manna quad!!
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yeah another problem i see is that you can't get a quad with sprintguard + draoi + thrunda
... but you could make a penta-elemental thrunda ripsaw!!
-2 raw first spell and -26%