CHAMP concept - Legendary Quester who goes around the map completing in game quests.

The quests will show up like the KHA ZIX VS RENGAR event. 3 will show up at a time and will be replaced once completed. Completing a quest will give it's corresponding reward which could vary from statistical enhancements to ability enhancements or customization. Perhaps even rewarding customisable legendary weapons which can be bought.

Thoughts and what other rewards could there be?