Why does everyone build [Yareli] with [Loyal Merulina]? It's literally killing this frame from the inside. If you don't like riding on Merulina, just use another frame. Simple as that. The whole fun of playing [Yareli] is that we are on Merulina and we use the [Merulina Guardian] mod. With this build there is no problem with energy, our skill power is high enough to increase 1 skill damage sensitivity, as well as Merulina's life. We are practically immortal thanks to [Adaptation] and also the ability to shield gate all the time by jumping on and off from Merulina. This build is strongly focused on boosting the side weapon - [Dual Toxocyst]. We use 3 Gloom skills instead of useless her third skill, because it can be used on Merulina all the time and heal you.

How to play the build:
Use 3
Use 2
Use 1 and 4 regularly for [Merulina Guardian] buff and to weaken enemies and pull them in
Kill everything with Dual Tox Incarnon (red crits all the time)

Archon shards:
1x Corrosive stack+3 (if you use secondary with corro)
3x Ability strength
1x Maximum energy is filled on spawn

Arsenal:
Primary: Primary Weapons are practically useless on Yareli, so pick whatever you want and you won't be using it anyway
I'm using Scourge Prime with Primary Exhilarate - when you apply impact with secondary it works as well

Secondary: [Dual Toxocyst] Incarnon with corrosive variant
My Dual Tox:

Melee: [Furax Wraith] with Amalgam [Body Count]

Companion: [Panzer Vulpaphyla] for priming viral

HAVE FUN!