Return Galactic Challenge or add a Test Arena

Just as the title says.

In the Galactic Challenge we had the opportunity to test different teams, and experiment.  Within the challenge, we could enjoy the teams that we have invested in anytime we wanted to endlessly without having to pay. Now, nothing. There is no way to play/test your teams without paying in one way or another.

You have taken all the fun out of building these teams, and turned them into just collectible things, usable ONLY for events and dailies. Where's the fun in that, Meatsack?

"Look at all the cool looking things I paid for that just sit there until an event or dailies come up..."

Fun, you say? New Era you say?

It's actually MORE spending, LESS return, and NO FUN at all.