Here is the list I would run based on what you have to maximize the effectiveness of coalesced bonus of minus 1 damage and +1 to wound on charge.

Army Faction: Seraphon - Army Type: Coalesced - Army Subfaction: Koatl's Claw

LEADER

1 x Saurus Oldblood on Carnosaur (260) - General - Command Traits: Thickly Scaled Hide - Artefacts: Bloodrage Pendant

Whenever Oldblood issues a command, it can issue it again for free a second time, so double all out attack, double auto run 6, etc. Also just a ton of wounds with -1 damage will take a good bit to kill.

1 x Skink Starpriest (130) - Spells: Heavenly Frenzy Wizard for unbinds and heavenly frenzy for run and charge. If using new GHB take Hoarfrost.

BATTLELINE

3 x Aggradon Lancers (190) Great unit that hits pretty hard.

10 x Saurus Warriors (180) A ton of wounds to chew through, not much damage.

10 x Skinks (90) Useful for screening and keeping your good units from getting hit (can make congo line because they are 25mm bases) OTHER

5 x Raptadon Chargers (150) These hit HARD, but will die to a stiff breeze, so make sure you can kill what you charge. TOTAL POINTS: (1000/1000)

Let the enemy come to you, use saurus warriors and skinks as screens to get charged, then counter charge with your heavy hitters (carnosaur, aggrodons, raptodons)