Key fragments
I' don't get key fragments in 2 weeks. I always get S+, S on different champs, but i don't get the drop
I' don't get key fragments in 2 weeks. I always get S+, S on different champs, but i don't get the drop
Key Fragments are not tied to champion grades at the end of a match.
Key fragments will sometimes drop after victory in any matchmade game mode.
Key fragments drop a little more frequently when you play with friends!
Additionally:
Taken from Hextech Crafting Guide