The boomerang should be like in “The Legend of Zelda” for me, not a spammable boomerang, wait for him to come back and throw it again and again. I was a little bit disappointed when I tested it.
I don’t know that much about boomerang in TU and how it works.
But I like your idea and would like add something I want see too (Maybe it’s already in game or not, I really don’t know): Boomerang bounce and come back or break In two parts.
Yeah it’s cool too!