So, I don't know if you guys have already heard about it (or if there's another topic open for this, haven't seen it), but the main Cockatrice server was shut down because of legal disputes with Hasbro about copyright infringement.
Since the software was a very useful tool for us all to playtest online decks for free before buying cards (and I suspect this also was the main point of the problem), I'd suggest you to visit https://www.change.org/petitions/has...ckatrice#share to sign in for Cockatrice to be restored; maybe it could change the turning of things, in a way or the other.

Thanks.