The epic challenge is only for the brave and courageous who have earned the right to take part in your specific and specially designed event.
When working with sales teams, this is often what is set for top-performers. It can also be applied for VIP level customers, where they can earn further achievement, skills, etc. If you are dealing with learners, have they maybe completed earlier levels and can now compete and learn at a higher level.
If you think of the game of tennis, only the op listed players get to play in the Masters at the end of the year to earn the honour of beating equals and being crowned the best of the best, which is equal to an epic challenge.
