Thanks for the "insta-win" combo! Definitely not intended, it should only make the first cast free, and once it's placed back in hand it should cost the standard amount, so I'll have to patch that up.
As for looping, the beta has been removed and replaced with an actual limited-content demo. Characters, cards, upgrades, levels, etc. are all limited in nature to give a hint of the product and not the whole thing.
That said, in the next few weeks I should have the current beta version available on Steam that people can request to be let into. If you're interested in finding out about that I'll be making an announcement in the Discord channel when it's available.
Thanks for the feedback and post!