Kuva Lich Weapon Farm (Weapon and Element of Your Choice)

Pick 1 of 21 Kuva weapons and 1 of 7 bonus elements. A Pro plays your account until that weapon with that element is in your Foundry.

Kuva weapons come from Kuva Liches. A Kuva Larvling can appear in a level 20 or higher Grineer mission and shows the weapon its Lich will carry. A Pro keeps rolling Larvlings until yours appears.

The Warframe that finishes the Larvling sets the bonus element of the Lich and its weapon. The Pro uses a Warframe of the element you pick from your account. Then the Pro works out the Lich's Requiem mod sequence and vanquishes it, and the weapon waits in your Foundry to claim.

Every other drop from the runs stays on your account.