The question about Deathbird's tactics was brought up elsewhere, but I don't think anyone else chimed in.
Here's my thoughts were:
We play it as equal to the printed attack on the tactic, so 8. The first time we played Deathbird's Epic side we did the tactics at 10, because we thought it felt right. Then another player made a pretty persuasive argument based upon the tactic wording. Since it just says that it "...enters the city as a Villain whose only ability is..." we decided that it becomes "un-affixed" to the Mastermind and should be played as written, so value 8.
I'd be interested to hear other thoughts though.