Aya Farming Wisp (Client) POV (2h, 115 Aya) 

open night wave menu

Esc > Nightwave. You can skip talking animations by doing that

Also forgot to comment about the 4 man. You can definitely optimize the time with 4 ppl on, the composition normally is either 2 Volts (STR/DUR) + Nova + Nidus or Volt STR + Nova + Nidus + Wisp. You can optimize assasination and cache phase with 4 ppl since you get an extra hand to kill and look for caches; although 3 ppl even duo sometimes (Volt STR + Nova) work.

Used to purchase vaulted relics, for prime weapons and warframes🥰

Exchanged for KFC

You can use it to buy relics at Prime Resurgence tab on the orbiter, or to buy them at Varzia's on Maroo's Bazaar