Dies to Removal

Hi folks,

So normally I only play paper magic, but I'd really like to start testing build variations more and Cockatrice seems like the way to do it. Or did. Before the WoTC cease-and-desist.

Is the Cockatrice environment still workable? What servers do you guys connect to (if you still do)? What's the best way for a Cockatrice noob to get comfortable with the interface without a lot of pressure?

Thanks in advance for any info!