This Build Is based on a Build from this Warframe video I saw a Build for sun & moon that does red Crit I changed it a bit https://youtu.be/iF91ijfDqHc Build is at 1:08

I Changed [Primed Reach] to [Primed Pressure Point] and I maxed out [Virulent Scourge] and added a forma for [Buzz Kill]

The Original Is:

Stance
[Mountain's Edge]

Mods;
[Primed Reach] Max Rank Forma
[Blood Rush] Max Rank Forma
[Condition Overload] Max Rank Forma
[Weeping Wounds] Max Rank
[Vicious Frost] Max Rank
[Virulent Scourge] Rank 1
[Buzz Kill] Max Rank Forma
[Sacrificial Steel] Max Rank