[Seige]

Take a look at this line in your Slayer of Runners

public override void GetDamageTypes( out int phys, out int fire, out int cold, out int pois, out int nrgy )

Should be this, but other then that looks good...

public override void GetDamageTypes( Mobile wielder, out int phys, out int fire, out int cold, out int pois, out int nrgy )

Seige