Helloooo, tis I, potasiium and today we will be looking at [Yareli].
A while back she was known as either the worst or second worse frame. However, After some buffs from DE (thank you very much) she is much better and pretty good.
So let's get into the guide part
disclaimer, I do not claim to be good at this game and have not extensively tested this build. I have used it before whilst casually playing the game. If you have advice on how to improve the build please put it in the comments

Damage Dealing
One of your sources of damage when using this build is Riptide, so whenever you see a large group of enemies, aim in the center of the group and tap riptide to cc them
Another source of solid damage would be from the Sea Snares high damage vulnerability and a weapon of your choice
Basically always have Aquablades up whenever available.

Helminth
So for helminth, you could choose to not helminth, or you could use gloom for the passive healing because gloom is that good, gloom goes well with this build from the high duration so the constant drain isn't to expensive. Also when playin I noticed that I hardly ever used Merulina except to travel long distances, so I don't find Merulina that use full so that's why I'm choosing to replace it with gloom. You could replace it with other abilities for survivability such as molt, defy, and null star (those were just examples but I'd recommended subsuming some survivability in replacement of Merulina. (I don't like that Merulina makes you so tall that some doorways slow you down, like why the hell is it like that. not cool DE)

Survivability
Survivability from this build comes from [Adaptation] and your survivability ability of your choice. (I picked gloom)
Not much else to say here. uhh don't get killed lmao

Flexible Mods
The flexible mods in this build would be [Augur Message] and [Adaptation]. [Augur Message] can be replaced with the [Surging Blades] augment or any quality of life mods such as [Natural Talent]. If you do use the [Surging Blades] augment do not replace Merulina with your helminth ability of choice, instead replace sea snares with your helminth ability
[Adaptation] can be replaced with [Vitality] if you like to have more health or other survivability mods. If you do wish to switch out [Augur Message] and there isn't enough mod capacity you could forma [Adaptation] or use melee amp for the higher amount of mod capacity. [Augur Message] can also be changed for [Vitality] for even more survivability.

Aura mod and Arcanes
[Pistol Amp] was used to take advantage of [Yareli]'s passive which grants +200% Critical Chance when moving for more than 1.5s but is not necessary as she is viable with any weapon because of her Sea Snares granting damage vulnerability.
Arcane Energize was used due to the low efficiency in this build.
Arcane Awakening grants +150% Damage to pistols for 24s after reloading, which once again is used to take advantage of [Yareli] wanting to use pistols.
I also use Arcane Blessing which grants +24 hp every time you pick up a health orb up to 50 times.

Loadout
Primary - honestly, the primary doesn't matter too much as you can't gain from Yareli's passive as it only applies to her secondary.
I use this one: https://overframe.gg/build/303574/fulmin/fulmin-elecviral-crit-build/

Secondary - for the secondary I would recommended a weapon with high crit damage and crit chance so her passive can work better
I don't have any that I would recommend because I actually don't use secondaries much lmaooo (hey future potasiium here, Tenet Plinx. Yep, Tenet Plinx)

Melee - this one is like the melee, it don't matter lmao. Use whatever you would like.
I personally use the [Gram Prime] because it is nice.

Finished
Anyways, I hope this introduces more people to [Yareli] so they know she isn't trash anymore
ok byeee, potasiium out.