The default strikes of the Nikanas lash out quickly, but have noticeably longer delay before the next swing. This should be noted if you are particular about hit timing.
Requires Mastery Rank 8, thus being the only melee weapon with this high of a mastery rank requirement.
Before Hotfix 13.0.1, the Dragon Nikana appeared alongside the normal Nikana in the Market with the same name as the regular version, causing some confusion due to its superior stats despite looking like an identical weapon. This has been changed to reflect the Dragon Nikana being a separate weapon.
The Dragon Nikana was previously unlockable via Clan research, requiring the Nikana to the researched. Hotfix 13.0.3 removed the Dragon Nikana from the Tenno Lab, and a conversion blueprint was made available in the Market to allow Nikana users to upgrade to the Dragon Nikana.
Though a Tenno weapon, "Dragon" is the second prefix, with "Dex" being the first, that doesn't follow the normal upgrade path, becoming Primes. Possibly due in part to the fact that neither are constructed with Orokin technology.
Also possible that due to Nikana being a second generation weapon, older generations take priority, leaving possibility of Nikana being primed in the future.
The Dragon Nikana's scabbard colors are customized from the Attachments tab, rather than the main Appearance tab colors.
The dangling strip by the scabbard is customized through the main Appearance tab, however.
The Dragon Nikana bears some semblance to the katana used by the character Karas.