The old masks
Therss no way i can get the old masks i missed out on im new to the game but love it i feel everyone should be able to obtain the masks from the old patches
Good news for you! You can get all those masks as a regular loot.
To be a bit more clear, all the masks are in the game as loot from Rift Disks if they were in a previous "Event" like the Halloween and Devolver masks.