Pantheon of Woe 1500p list help

Hi, I'll be playing a 1500p game with a friend sometime soon, and wanted to try the Pantheon detachment. I'm not playing often and I'm painfully aware I'm not a master strategist, so I figured I'll ask you guys for some help :) I'll be playing against Tau, so I know there are some heavy hitter suits with vehicle keywords and a bunch of annoying stealth suits with marker lights. We still haven't decided if we want to do secondary objectives as well or a simple deathmatch with points only from objective markers.

My game plan is:

1. 10 Warriors brick with Stormlord and Chronomancer - sits in the back objective, farms CPs

2. 10 Warriors brick with Overlord and Plasmancer - storms the middle. Assault, sustain hits 2 at 5s, rerrol 1s on wounds, entire wound if enemy is at objective

3. 6 Skorpekh Destroyer + Skorpekh Lord - Rapid Ingerss them near the stealthsuits, charge, and break their stupid ass marker lights before they get to target C'tans

4. Nighbringer - Same as Skorpekhs

5. Void Dragon - Target heavy hitters (which I know will be vehicles so debuff them as well)

However here are my doubts:

The 10x bricks might not be as tough as I want them to be. Ideally I'd swap them with Immortals but I can't afford it fully

Nightbringer and Skorpekhs are doing the same job. Potentially I'll need to target two separate units at the back, as he'll probably have his CP farmer there as well. But Skorpekhs don't have the Deep Strike so they might not be that usefull.

In theory I can swap Skorpekhs and Chronomancer with Transcendent C'tan and use him as show up near heavy hitters, increase aura, shoot everything at vulnerable targers, escape. He also is easier for sneak attacks on the back, but I'm worried he might be an easy targer and I won't have enough units to secure multiple targets. And then the back unit is weaker. But then I can swap this back brick to 2 Heavy Lokhust Destroyer maybe?

+++++++++++++++++++++++++++++++++++++++++++++++

+ FACTION KEYWORD: Xenos - Necrons

+ DETACHMENT: Pantheon of Woe (Cosmic Distortion)

+ TOTAL ARMY POINTS: 1480pts

+

+ ENHANCEMENT:

+ NUMBER OF UNITS: 10

+ SECONDARY: - Bring It Down: (2x4) - Assassination: 7 Characters

+++++++++++++++++++++++++++++++++++++++++++++++

Char1: 1x C'tan Shard of the Nightbringer (370 pts): Quantum Goad, Gaze of death, Scythe of the Nightbringer

Char2: 1x C'tan Shard of the Void Dragon (355 pts): Animus Damper, Canoptek tail blades, Spear of the Void Dragon, Voltaic storm

Char4: 1x Chronomancer (65 pts): Chronomancer's stave

Char3: 1x Imotekh the Stormlord (100 pts): Gauntlet of Fire, Staff of the Destroyer

Char5: 1x Overlord (85 pts): Resurrection orb, Staff of light

Char6: 1x Plasmancer (55 pts): Plasmic lance

Char7: 1x Skorpekh Lord (90 pts): Enmitic annihilator, Flensing claw, Hyperphase harvester

10x Necron Warriors (90 pts): 10 with Close combat weapon, Gauss reaper

10x Necron Warriors (90 pts): 10 with Close combat weapon, Gauss reaper

6x Skorpekh Destroyers (180 pts): 2x Plasmacyte, 6 with Skorpekh hyperphase weapons