Revert Evo

Hello,

Yesterday my Nephew had put Sorloth into the new Finesse Evo that I was saving for another player. I've never used him nor do I want to spend 70k coins for a Sorloth card. I've chatted to the live help support and they've recommended me to come here in order to revert the Evo so I can put the ACTUAL player I wanted into the Evo. Find below image of the current evo (0 games attempted)

Thanks