Fl4k stacks a Buff for each Critical Hit, up to 99 times.
Melee, Grenade, Pet, ... damage that isn't a Critical Hit resets the buff.
Entering Fight for your Life or Fast Travel also resets the buff.
Missing a shot is ok.
+5% Weapon Damage per stack
Max Stacks: +495% Weapon Damage
Dedicated drops are items that can only be farmed at one or rarely more sources that have the item assigned to them.
World Drops are items that drop from any suitable Loot Source in addition to their other sources.
Suitable Loot Sources: