Guild Wars 2

This should make Krait (rare) weapons when combined with the appopriate mithril / elder wood components.

It does … except for hammers and maces, where it makes Giver’s Mithril Mace/Hammer (Rare) instead. This matters if you are collecting Krait skins.

Yes, it is a documented Anomaly. You can, however, craft any of the other Krait Maces (Morning Stars) and Warhammers.

http://wiki.guildwars2.com/wiki/Krait_Morning_Star

http://wiki.guildwars2.com/wiki/Krait_Warhammer

Good luck.