(2019-07-12) If an ability of the equipped creature states that it has flying "as long as" a particular condition is true, that condition becoming true will not cause that creature to gain flying
The market data paints a clear picture
In my opinion, that moment begins with the HeartGold & SoulSilver (HS) expansion
If nothing else, you can just copy the draw trigger and get extra cards that way, and the ceiling is much higher
You have to tap those tokens to use them, so it does limit your ability to use things like Treasure and Clue tokens, but does give you the opportunity to keep everything open until your last opponent's end step to start using Baylens abilities
Additionally, her special ability allows any challenges from your opponent that happen while Tiana is exerted will give the challenging character a minus three to their Attack