How do i get rid of this pretender ?

[Bullock]

One of my Anointed just took a gift of Kurgi from one of his commander.
Could it be of any use in my crusade ? or lesser horror will remain insufficient ?
Anyway how would you kit it ?

Also he was about to storm a fort alone (with troops though) should i wait one turn to bring few other commanders or i can try like that ? i m afraid he get killed by the horror and the army rout.