Oh, no!I wanted to upgrade cooling mass booster epic-myth, but end up upgrading mass booster epic only.They look same to me and many items look identically same.
If it's feasible add "Transform Range Dot's" in upgrade section besides item image.
There's no such thing as an "epic only" Cooling/Energy Mass Booster.
The only other boosters are those garbage Common-Rare ones, which you should just throw into a fusion furnace.
Me too, I had bought a epic box by accident, and I was meant to buy a silver box, can you give my tokens back and take the epic box one back ?