Turned out to be easy
Sam really did find a way to deal with these habitats, in fact, there are two for two possible cases.
One of them is considering every beast in the whole habitat as an individual threat or danger, then there would be having a treasure individually which will lead him to kill every single beast.
But when he thought of this whole thing another way, he felt that there is another possibility.
What if the whole habitat is considered as a single threat? Then there would be no need for him to necessarily kill the whole habitat. He has many other ways; he can even just steal the treasure if it was just guarded.
So, the first issue they have to deal with is, whether the habitat is considered as a threat or each individual beast is a threat.
The next day, he went to the nearest habitat, the Jade horned Rhinos.
He was very careful as he went to that place, if he was discovered, he would have to use extreme measures and the treasure may as well lost.