Hello, I am miguelceromil, as of now I am a gold 5 summoner on the euw server, I have mained Pyke until his lethality scalings were introduced, I love playing offmeta ****, up to the point that I got gold playing suportive tank Kled jungle on solo q. I also made a Singed jungle guide if you are interested in more offmeta stuff.

Supports are champions that do not require much money to be viable (his build isn't expensive at all), who have nice base damages (Noc gets passive ad and as thanks tp his kit),or whose kit is meant to be used to aid an ally Noc can peel as any bruiser can. If you recall from the intro, I used to main Pyke before his scalings were changed, aka I played tank Pyke. The idea behind Noc support is to be an aggressive lane killer that evolves into a semi tank supportive bruiser.

Laning phase.
First of all, as Nocturne support you want all 3 basic abilities to all in; once you do, q the enemy adc or support, then e the target and use your w to block any cc that would cancel your e (properly using Noc's w does require some skill and practice), your fear will proc aftershock, this making you really tanky and giving some extra burst; most of this lvl 3 all ins will end up with a kill or two. It's important to use your ult to gank a lane, to roam with your jungler, thanks to presence of mind you will have almost unlimited mana to do so.

Mid game.
As any support, remember to buy control wards and secure vision control over objectives, Noc will be able to both tank the objective or zone enemies off of it if you are contesting a very important objective, mainly baron, you can r to 100% assure vision control over it). During this time play as an aggressive peel tank and have as much map pressence as possible, you have great roaming and ganking, you can basically choose to play as a second jungler or as a support that stays 24/7 peeling his carry.

Late game
You are probably screwed, other supports scale better to fulfill your role than you, make sure you end the game before lategame arrives.

Abyssal mask is great if you have an apc or are playing around a magic damage champion, not really for yourself.
If you wanna try Zeke's, don'tbe too far away from your partner when ulting, otherwise the passive will not activate.
Only go duskblade or yoummus' if you are supper are ahead, otherwise get black cleaver, Malmortius, GA, Edge of Night or Sterak's if you wan some damage. Btw: I believe bc is great for a supportive bruiser with an adc, since its passive will make the adc deal even more damage.

This has been my offmeta support, I love it, it is quite decent and I won't discard playing it on ranked. I hope you guys give it a try and love it as I do.