Not sure we want to open the door to changing card stats once they are released. The purpose of the test server and team members trying on cards before they get released should be the only time cards could go through stats changes. If card testing needs to be extended before their releases, then fine by me, no need to rush new card releases.
Not all airdrop cards should be top level. A good mix of cards help with power creep and not all cards can be meta defining. Please no meddling with cards that have been released.