Ofanim court weapon source ?

I'd like to make Ofanim on foot but i'm a bit stuck for the weapons i could use for them, its called blade of judgement but it seems that it can be anything like a mace or an axe. At the same time i don't want to use perdition weapons for them as it would make them look too similar to sanguinary guard. Any suggestion for kits (even from AOS) to get weapons for this court ?