A slightly less powerful version of my Umbral build. Obviously not everyone will want to toss their valuable umbral forma into [Ash]. Used mostly in defense or mobile defense missions. Bladestorm will trigger both Arcane Trickery and Arcane Ultimatum provided the enemy dies to the finisher and not to the bleed proc. Trickery will halve the cost of further bladestorm marks and if it doesn't proc then you have 1200 extra armor from Ultimatum to keep you alive.
Pair with any weapon that has increased attack speed as that also increases the attack speed of bladestorm attacks. Increased combo count chance also increases the combo count gain from [Rising Storm].