Do you mean Metamorphic Technique (not metamorphie)?
I trained in MT years ago, with Reiki Master Tripuri Dunne. It's a transformational energy therapy, which involves tapping and light pressure on energy points on the feet, hands and skull. I found it quite powerful, although I no longer advertise myself as an MT practitioner as my career went in a different direction.
I think Tripuri still teaches. There's also the Metamorphic Association:
http://www.metamorphicassociation.org/
Hope this helps.