DE vs NECRONs Mech

I have a 1500 pts rematch against necrons lined up, and even tho i scraped a win i got smashed on the table, i could not bring down his vehicles.

This is the list i am thinking of bringing;

1 Archon SF, VB, HW

4 Grots, aberation, VB, Raider, NS(Archon here)

5 wyches HW Venom , nightshields, SC
5 wyches HW Venom , nightshields, SC
5 wyches HW Venom , nightshields, SC
7 wyches HW Raider, nightshields, SC

9 Reavers 3 HL, Arena Champ VB
9 Reavers 3 HL, Arena Champ VB

1 Ravager, NS

So everything has nightshields which will reduce the rapid fire range of those crons when i get up close, i have also loaded on wych bombs, to take down that pesky mech, 5 units can throw haywire then assault with haywire.

I will NOT be bladevaning near a CCB, it can take down a reaver squad easy. Ghost arcs and the CCB will be the focus.


His list at 1250 was:

1 Overlord, warscythe, CCB
2 Harbingers of destruction

7 Immortals, gause, night scythe
7 Immortals, gause, night scythe
6 Necron Warriors Ghost arc(1 Harbinger here)
6 Necron Warriors Ghost arc(1 Harbinger here)

1 Annihilation Barge
1 Annihilation Barge

His 1500 will be largely the same but he will either bring more scythes doom or night with more immortals, or some wraiths.

I have the venoms to deal with the wraiths, the air i will just ignore and try and kill the rest of his army.

What do you guys think? With some suitable offerings to the dice gods do i stand a chance of surviving the night?