No problem.
Since they are materialized they are using the physical stats Aria provided:
B A R S W L I C M ESS EDG
F F+3 F+2 F F+1 F F+1 F+2 F F F/2
In that case Rea=F+2 + Int=F+1 + Full defense Wil= F+1
At R 6 that's 22 defense dice.
Since you are using your Mono Whip with Reach 2, that is reduced to 20 defense:
Defense:
20d6t5 4You hit with 2 net successes for 14 DV AP -8
The spirit has Body 6 + Hardened Armor 12, reduced to 4 through AP
4 hardened Armor is 2 auto successes
Soak Roll:
Soak:
10d6t5 2Total DV 10, Spirit has one Box of Physical damage left
Spirit loses 3 Ini and has -3 to its dp (except soak)
Assuming your hell hound attacks the same one as you:
He has Unarmed 3 + Agi 4
He can charge the Spirit for a +2, +1 for Robyn in melee
Bite: DV 7
Attack:
10d6t5 7[10d6t5=4, 6, 5, 4, 6, 5, 4, 5, 6, 6]
Admirable
Spirit has 22 defense, -3 Wound, -1 for previous attack
Defense:
18d6t5 7 [18d6t5=2, 6, 2, 5, 6, 6, 4, 4, 1, 4, 2, 1, 2, 1, 5, 5, 4, 6]
Damn it. So close.
You could spend a point of edge to finish the spirit off. You'd need only one more success