If you are not too picky with your choices on what to do, take a look at the Timewarped Badges in World of Warcraft and see if one piques your interest. And can be exchanged for various rewards, benefits and will add much more experience in the League game. The varied use-cases are depicted below:
Timewarped Badges Rewards
Players can buy gear that scales with their level, and will continue to be relevant through various stages in the gameplay process. The levels of the items (which can even change based on the expansion being used for Timewalking)13
Heirlooms: Heirloom upgrade tokens, obtained with badges and will make any heirlooms you have more potent for leveling new characters45.
Toys and Mounts All new players who have frugally minded in MMO will find that one of the most attractive elements to use between vendors keeps some unique toys, mounts available for purchase. There are unique mounts and toys associated with each Timewalking event, sometimes relating to expansion being emphasized34.
Reputation Tokens: Badges can be exchanged for reputation tokens with specific factions, allowing players to reach exalted status with certain groups45.Timewarped Badges (ad)
Vendor Variability
These will be sold by vendors who rotate on a event-by-event basis. This variance prompts players taking part in other events to obtain the rewards available exclusively16.
Strategic Use of Badges
The currency can generally be spent on the final weekend of a Timewalking event, and players will constantly strategize to see what is worth spending them on. Some will concentrate on collecting those mounts and toys first, while others may simply look to upgrade their heirlooms or buy gear for what they’re playing currently33.
To sum up, Timewarped Badges are a blank slate of currency that help to fill in various gaps with all the rewards available to players and allow you as a player who may not care for one specific reward type so much more options at your own disposal.