Adeptus Custodes or Sister of Silence from WH40K

Inspired by Arex Stormshield, the submission have me the idea to use the equipped helmet. A lore accurate Custodes would be a male Roegadyn, since they're canonically 2.8m/9ft tall. Otherwise, a Sister of Silence works fine, I find that the helmet design fits neatly with the established lore images. The Fierce Tyrant Set can be obtained through reaching Rank 25 in the PvP Series Malmstone (season is ongoing, not sure when it will end).