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
That means you probably want cards like Pyretic Ritual or Manamorphose
Strategic Betrayal Edicts are always shaky because your opponent chooses which creature to remove, which gives them an uncomfortable amount of control over what lives and what dies
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
Mewtwo EX has two attacks, with Psychic Sphere a strong enough attack to do damage, but its strength comes in Psydrive