Review Detail of MajorLove_Gravy in Naruto: The Wandering Blacksmith

Thoughts so far, I dont think this is how the transformation technique works, like at all. I feel like if you could use it to have extra limbs then we would have seen countless people use that in other scenarios. Author states his reason for seeing the transformation jutsu as so op is naruto turning bunta (an adult sage toad) into the 9 tails but the only reason that was possible is because it was Naruto doing it. I'm only on chapter 3 and I feel like author is just going to attempt to abuse this jutsu in ways it can't be used