1850 - Necrons - Combined Arms Detachment - Annihilation List

DISCLAIMER: NO WRAITHS USED ON THIS LIST. I OWN NONE. YES I'M AWARE THEY ARE AWESOME.

That said, I wanted a list where I could showcase my 3 barges and surround them with strong options. The Decurion doesn't have an option that allows you to bring 3 barges like this so I went with CAD for it and maximized the benefit of objective secured.
I tend to see skyhammer often so I brought along some deathmarks to counter, and a C'tan deathstar to have a reliable hard hitting unit. I would prefer the Nightbringer C'tan but don't own one so gotta make due with the Deceiver.

Thoughts? Ideas?

Necrons - Annihilation

Combined Arms Detachment - 1380 pts

1x Overlord - Warscythe; Nightmare Shroud

10x Deathmarks

10x Warriors
1x Ghost Ark

10x Warriors
1x Ghost Ark

10x Warriors
1x Ghost Ark

1x Annihilation Barge - Tesla Cannon

1x Annihilation Barge - Tesla Cannon

1x Annihilation Barge - Tesla Cannon

Formation: Conclave of the Burning One - 470 pts

C'tan Shard of the Deceiver

1x Cryptek - Phase Shifter; Veil of Darkness

1x Cryptek - Phaste Shifter; Solar Staff; God Shackle

Total Points - 1850 pts