So I came up with this list I hope you like it it was inspired by striking scorpions list
Double battalion plus 10 cpts battle forged plus three total 13cpts
Warlord trait not decided
Relic not decided
First battalion
Hq's
Old one eye
Nurothrope
Troops
3 units of three rippers
Heavy support
Toxicrene
5 carnifexs all with two pairs of scything talons horns bone mace and on sixes all units within 3 inches on a 6 suffer a mortal wound
Second battalion
Hq's
Nurothrope
Nurothrope
Troops
2 units of 14 genestealers
One unit of three rippers
Heavy support
2 trygon primes
2 trygons
1 mawloc toxin spike and prehensile pincer tail