Achievements/Threads of the Past

{{ AchievementCard | 
|title=Threads of the Past
|task=Complete Shadows of the Past on Nightmare difficulty.
|img=acv_threads_of_the_past_
|req1=1 |ap1=25
|req2=5 |ap2=50
|req3=10 |ap3=100
|req4=25 |ap4=250
|req5=50 |ap5=500
|req6=100 |ap6=1000
|req7=250 |ap7=2000
|note=
|reference=
}}