A Jester contest to be held by the King? Leon saw this as an opportunity and decided to go for it by learning the skills needed to win the Jester competition.
Leon may have certainly learned about being a Jester.
But is that all he learned? Did he even win? Not as simple a story as you might have expected but you will laugh When the King announced that he was going to hold a contest to determine who was to be his new Jester, Leon decided that this was a contest he wanted to enter.