how do I get an upgraded sickle like a master craft or an ascendant can anyone answer that

By far the most efficient fiber collector I’ve ever seen. Got 1000s within minutes

1. when you kill salmon, you get much Prime fish meat to tame for example a baryonyx.

2. it gathers a massive ammount of fiber from bushes

i used it and its pretty good you can get more rae salmon and fiber