Izanami Forge Boost
Season of the Forge introduced the Black Armory and with it new 3-man activities. Volundr Forge, Gofannon Forge and Izanami Forge.
To start the quest chain for the Izanami Forge you will need to get a Vex Transponder. You will then need to complete a lengthy questline to unlock the forge that also reward you with a Black Armory weapon once you complete the specific forge quest. You will also need to complete the forges for weekly and daily bounties from Ada-1.