Messing about with a Costume design for a Grandmaster of assassins type character. Hence the decorativeness.
Boss assassin needs to be more impressive than inconspicuous to keep those murderous little underlings in awe, but practical enough to knock them back into their place if they get unruly and impetuous.
In other news I should make a cloak-coat like that. twould rock socks.
The old "Coat-thief-deterring-blades" ploy...