You only have access to building special gear if you are in a clan that has a stronghold and with the research completed.
If you have built the gear and left , you should still have the gear.
In the forge there is a drop down box which includes normal gear,invader gear, shaman gear and when appropriate, special gear.
This thread is about special gear, which you can forge in the clan stronghold , so unless there is a piece of equipment called 'mask of resolve', and there could be one that I do not know about,I think you mean mark of resolve, which you need to play the gloom game.
Other than the daily gift ,these have to be earned , or paid for, from the bank.