Thank you @jadedthoughts for asking this question, I have the same problem. And
thank you @PaybacK for sharing this solution!

I'll give it a go. It's really quite tricky to create successfull morphing/transforming skills/spells just with Battle Eventing; I've been trying hard just with States + Common Events in Battle, but the results are not perfect and I always find problems. For instance, when my actor dies while transformed, and then it's brought back to battle with a Potion or Spell, the "transformed image" -
SV sprite- remains, but his Stats/Weapons/Skills are reset to normal... and many problems of the sort. There are some tutorials on YouTube that give superficial solutions to Morph/Transform but they don't solve the many issues that arise from doing this just with Common Events in Battle. I'll let you know if I succeed with this solution.