I ended up skipping May - I got busy. I do pledge to do a better job of doing this closer to once a month this year but I never thought I would pull off all 12.
For June my plan is to include a battle from the new
CMBN battle pack that was just announced. The scenario is not decided yet. I'll ask the testers which one they think is the best for H2H but I will not be announcing the scenario until after the pack is actually released - no spoilers allowed I am afraid.
An actual invite to participate will be posted soon.