The The Nightmare Add-on for Shadow of the Tomb Raider has 5 trophies - 3 bronze, 1 silver and 1 gold.
Obtain White Breath skill, equip Grip of Fear White Knuckle and Scales of Q Feathered Serpent
Obtain a Bronze, Silver, or Gold medal in Time Attack for the Howl of the Monkey Gods Challenge Tomb
Obtain a Bronze, Silver or Gold medal in Score Attack for the Howl of the Monkey Gods Challenge Tomb
Complete the Path of Fear Side Mission
Complete the Howl of the Monkey Gods Challenge Tomb