I decided to build a toa metru like MOC with modifyed parts.
I wanted to build something simple, but only having him black didnt seem to intresting. So i used my costom painted kanohi hau. I painted the rest of the black parts the same way and i think it ended up pretty nice.
Because i used the standard metru build Itzal has the same stabillity as your standard toa metru set.
I did add a few additional tubes and a backpack for some cool looks.
I did make up a small backstory for him:
Itzal is a shadow toa that has haunted the matoran for centuries, tricking them into doing bad things by making it sound like its a good thing, making the matoran thinking that they are helping everyone.
His blades are hidden and are materialized when he needs them. He collects kanohi masks for sport, using them like makuta terridax used turaga duma as a cover. You could call him a mask theif.
Thats all for Itzal, a little anto toa theif.