The training arena is the former name of the Guardian Ring. It is now located directly in the Guardian Ring and allows you to automatically level up a champion with 5 slots.

Should the training arena be unlocked?
If you play a lot and are always connected, it will pay off after a while.
But I advise you to unlock the arena but not upgrade it. Put in food (1* or 2* champions) or champions that you don't plan on upgrading right away. Avoid putting in champions that you need quickly, as it takes a long time to level them up.
What is the training arena used for?
Your champions gain exp.
Level :
- 2,000 to 2,500 exp per hour.
- 3,000 to 3,500 exp per hour.
- 4,000 to 4,500 exp per hour.
What to put in?
As put above:
Food or champions who are not good at the moment (legendaries) are likely to take a UP.
Guardian Ring video:
Other questions ?
That's what the comments area at the bottom is for.
To return to the other pages of the WIKI:







When the level is available for the champion in the arena does the exp continue to go up or does it have to level up to start making the next level?
You have to mount it so that it regains exp so as long as you don't click = time and exp lost