You said at some point high blood trolls are very durable and Feferi is the highest of the high bloods. How does gamzee get shot multiple times with a machine gun and lived almost like it didn't happen and Feferi died by one shot of a science wwand ?

Yes, well Gamzee while being a high blood troll is also a clown, and you can’t keep down the clown so that make him like a thousand percent more durable.