The point of this build is to be immortal but also deal a heck ton of dmg.

• To balance out the health and energy surplus you have to [Sacrifice] efficiency but there is no problem to that due to [Primed Flow] normal [Flow] works too but you will run out of energy at some point so this build works fantastically with battery builds for Harrow and Octavia. (also ability power giving frames are also good like Equinox.)

TANK ORIENTED ABILLITIES

• Replacing Sea Snares with [Mirage]'s Eclipse is essential because besides the huge dmg buff it gives (that also works perfectly with aqua blades) it also grants 75% dmg reduction on top of the 75% dmg reduction Merulina has so the health you will be loosing is minimal because it will be redirected to Merulina so the 32k health Merulina has will never be able to finish and you wont even need to cast it twice.

DMG AND ARMOR STRIP ORIENTED ABILLITIES

• You can also replace Riptide ability ( and keep the sea snares ) with [Nekros]' Terrify to strip ~250% armor so you u get an armor strip and a free dmg booster.
• The arcane Molt Augmented and the arcane Molt Vigor are relatively easy to farm from void angels from the Zariman so it wont be that hard to get then ( considering you don't have them already maxed coz they are side loot most of the times XD )
• The 3 umbra mods are given to you after the mission '' The Sacrifice'' or can be bought in Cephalon Cimaris' shop with standing.

CONS

•• The bad thing about this build is that it requires 3 umbra forma. You can buy one every 8 weeks from Teshin for 150 steel essence. Every couple of Nightwave passes its one of the last rewards you can receive. Also at MR30 you are given 3 umbra forma.
•• Another downside is that Merulina is exactly like k-drive and its hard to learn how to maneuver in such tight spaces that missions are. With practice and patience the k-drive mechanics will be mastered in no time.