I was reading some miscellaneous notes about ADOM and it said that Dwarven Beastfighters/Monks cannot be crowned with Hammerheard, and that HE/GE Beastfighters cannot be crowned with Sun's Messenger.

If it is not already the case, ME Beastfighters should likewise not be able to crown with the staff of creation [this was def. not the case as of p7, but I don't know if this was fixed when probability of getting staff was fixed].