Playing as Rengar grants optional access to the Bonetooth Necklace, a unique store item that collects trophies as he racks up kills and assists. Slaying enemies will increase the power of the necklace and new bonuses unlock when trophy thresholds are met. You’re never forced to purchase or use the Bonetooth Necklace, but are rewarded for an aggressive playstyle if you choose to use it.
Where can we find out more about this optional necklace?
"Slaying enemies will increase the power of the necklace and new bonuses unlock..."
Are these in-game bonuses that improve the character with stats or just ornamental bragging rights type of bonuses to show off how many people you've killed like perhaps earning a Tag or Title?