So basically my idea is to be able to make your heroes (teams) battle each other with no actual reward but training and learning how your heroes react to eachother. It could help the higher lvl players to spend some more time in the game while waiting for refills on energies. I would love to be able to put my 2 blue 5* against each other to see who`d win out of 10-15 games.
I like. Similar suggestions in other threads to allow friendly raid battles against Alliance team mates (for no resources or energy loss)… or to be able to raid your own defence team to test it.