Neural Simulation August 5, 2024 to August 11, 2024
+40% Healing Bonus
Boss Has 25% Frost Resistance

M1 Lyfe - Infinite Sight with Nova Squad and T1 Nightborne Crown
M0 Fenny - Starshine with Reverie Squad and T1 Heart Hunter
M4 Acacia - Kaguya with Amarna and T3 Prismatic Igniter

The most important thing to use Lyfe IS on Fiend Frostwind is Lyfe IS Standard Skill must mark Fiend's Head (this required RnG, even if you aim it on the head before Casting Standard Skill, it's not guaranteed the mark will be on Head). Because if you mark other parts, the parts will get destroyed after 1-2 dodge shot and you are left with no marks at all, resulting in DPS loss.