I was considering making another DClaw assasin too
My setup was going to be this:
20 DClaw
20 CoShadows
20 SWarrior
20 Venom
In my testing last ladder, DClaw by itself was an excellent way to do damage without using charge up skills. Currently, DClaw gets 40% ED per point, so you'd get at least 800% when it's maxed. TStrike gets 150% ED on the third charge, so you'd get at least 3000% when it's maxed. 4 DClaws gets you 3200% damage in the same swings as TStrike would get you 3000%. The advantage of TStrike is that you could use it with DTail for the massive explosion damage (the X% of DTail is multiplied by TStrike, i.e. if you do 100 dmg, then TStrike pumps that to 3100 dmg, then DTail pumps that to about 6k dmg at skill level 1).
I used SWarrior instead of SMaster because the warrior was really effective at casting CoShadows for me, while the Master just did her own thing. Also, the Warrior seems to always cast your right-click skill whenever she is cast and is about to engage an enemy. This maens that when she dies, I could cast her, switch to Fade until she casts it, then switch to Venom, then to CoShadows. She'd usually cast all 3 on her way to rejoin the fight. That made her an excellent tank.