How do I test experimental changes in training room?

What’s the code? I can’t find it.

go to custom game…load the practice room premade…then go to options and theres an option to turn on experimental card stats (if they exist)

you don’t… yet.

You can do it now, I tried it with Brig about an hour ago.

Learn something new everyday. Last I heard people were asking for the ability, didn’t know it made it live finally.