How to get 12000 Legend Tokens fast?

Hey there, I'm curious to know how can one quickly accumulate 12,000 Legend Tokens in a game or platform that utilizes them? Are there any specific strategies, missions, or in-game activities that are particularly rewarding in terms of earning these tokens? Also, are there any time-limited events or promotions that offer boosted rewards for earning Legend Tokens? I'm looking for practical and efficient ways to achieve this goal, so any insights or tips would be greatly appreciated.