Once you hit 3,000 Trophies in Clash Royale, you’ll enter the Legendary Arena. This is the final arena in the game and is unique in that it uses something called “Legend Trophies.”
These “Legend Trophies” are gained at the end of every Legendary Arena Season, which lasts 14 days.
Currently, Legend Trophies have no function in Clash Royale; however, Supercell has stated they do have plans for them in the future. When asked in a recent Q&A, Supercell said the following:
“Yes, although we cant say what yet, though it is certainly something we want to do.”
At this point, it’s hard to say when these plans will come to fruition, but we’ll keep our ears open for anything.