Talk:"O Holy Night"/@comment-24154787-20131219141447/@comment-24167698-20131219141844

Yes. They stop for a bit because not every gem can be stolen. When you find a gem, you enter  a reverse lottery where if you lose, your gem gets 'tagged' for battle and you become visible on the battlefield. Once this gem gets stolen, attacks stop because previous gems were (and remain) invisible.

On my side the rate is 1 tagged gem for every 10 invisible ones.