okay, I know I put this topic off-topic, but I need to get this out of my chest.
if you're going to fight a kuva lich, mercy it eminently, just do it, and don't be lazy!
if the levelling is the problem, then get the right build for your arsenal! I'm not talking about the requiem mods, cause I understand that you have to use relic farming for those mods, but letting a lich leave is just lazy, wasteful of murmurs and you would run out of Kuva lich missions on a planet very easily! and I am sick and tired of players letting their kuva liches go after fighting it 3 times, and it is causing more problems for your kuva lich farming and lesser and lesser the missions you will have!
I actually experience players letting their litches go without a single care if they are wasting murmurs. the same implies to Corpus sisters too! none of this is nessacerry and it makes no god damn sense why they are letting them go like that! waisteful and it is a terrible idea, because you can only do the mission once, and that's it! if there is a kuva weapon you want, just, stop skipping your chances! get the steel path build, including your weapons and frame (or any frame that could handle steel path), and just mercy a lich! you'll get a lot of murmur in mercying it, trust me.
if you want to mercy a litch to get the weapon you want,