First off, I think this is in the wrong section, so I'll just move it over to the appropriate subforum.
Secondly, I do worry about giving essentially giving away a freebie prize in Ditto in that second build. It's a great starter, sure, but it's not long before Ditto is a free prize for your opponent.
Black Kyurem is nice to spring as a surprise, but wouldn't it be a huge pain to consistently set it up?