Ichigo Kurosaki
Final Getsuga Tenshou
The Final Getsugatenshou is Ichigo Kurosaki becoming Getsuga itself. When Ichigo kurosaki used the technique, Ichigo Kurosaki will lose all of his Soul Reaper (shinigami) powers. that's what "final" means
Mugetsu Final Getsuga Tenshou
great powers
The Final Getsugatenshou Ichigo Kurosaki
Screenshot
watch Bleach anime the final getsuga tenshou here