Once it triggers, the creature will gain skulk until end of turn when the ability resolves, regardless of whether or not its power is still 2 or less at that time
If it has too much, it gets heavy and flies clumsily
It can be said that this is correct from much information
There are 64 of these Through the Ages cards in total, four for each Final Fantasy game
In a case where you create more than one Cat Warrior creature token with Ajani, Nacatl Avenger's second ability (for example, because of the effect of Doubling Season), the reflexive ability will trigger once for each Cat Warrior you made this way
you might need to absorb some early damage from Delvers or Serpents, but preserving your long game is worth it