Kuva Lich

Creation

Choose your progenitor (Warframe that determines the element of the weapon). Do any level 20 or above greneer missions and finish the task. Once you finished you task, your screen will flicker and you kill as many enemies as you can. A Kuva guardian will announce, that a Kuva Larvling has spawned. Kill the Larvling and confront it to check, which weapon the Lich is going to spawn with. If it isn’t the weapon you want, you can extract and the weapon you didn’t want will be taken out of the drop table (List of weapons that can spawn) and won't appear at all until every weapon is taken out of the table, which resets the table and all weapons are back. Liches also have a 20% chance of spawning with an ephemera.

Lure out your Lich

Do Lich controlled nodes, indicated by the node covered in a red surface. Kill Kuva Thralls during the mission. They're like normal units but wrapped in a blue/purple aura. Defeating them opens them for mercy kill and when killed, they will fill up your murmur and your lich’s rage meter.

The rage meter determines the chance of your Lich appearing during a lich controlled mission. The angrier your Lich is, the higher the chance they will spawn during a mission. If the Lich spawns, they will turn regular units into thralls which is good, since you need them to fill up your murmur. When you finish any mission in a lich controlled planet, you have to pay taxes, which means, your lich will take a percentage of your resources. They will be returned when you defeat your Lich.

When the murmur is filled up, it will reveal a requiem mod that you need, to defeat your lich. there are 3 murmurs and each require more thralls than the previous murmur.

Requiem mods

They’re parazon mods and can be obtained through requiem relics, that can be obtained as a reward from Kuva Siphon or dropped from Kuva Thralls/Hounds. Crack the relics in requiem fissures. Every Req mods have 3 charges. If the mod is out of charges, you can transmute 4 empty req mods to get one charged req mod. One charge will be consumed, when the sequence of your Lich is correct. Every Lich has a random sequence and if the mod is on the wrong slot, your lich will rank up and move to the next planet. Enemies will get harder a well as your Lich. Equip your req mods on you parazon and on the left side, it shows you, what mods you have unlocked and which slots were correct/wrong. It is also shown on the Liches profile.

Confrontation

If your sequence is correct, the Lich will flee to Saturn Proxima (Railjack mission). During the mission, destroy Greneer ships and enter the big ship. Confront your Lich and defeat it. When the Lich is defeated, you have 2 options: Convert or Vanquish.

Convert:

Turns your Lich into an ally. You won’t get the weapon, but you will get the ephemera, they will appear in missions to help you when you die once and you can recruit them as Railjack crewmember.

Vanquish:

You kill your Lich and will get their weapon.