It is because the game does not run one thousand different sets of tasks, instead it runs one set and multiplies the result by one thousand.

So when there is no legendary in the set there are no legendaries inn the thousand.

When there is one legendary in the set you get one thousand legendaries.

It is the same for materials.  When there is one item in the set you get 1,000, if there happens to be an epic item you get 1,000 epics.

Online gaming play snake is one of  the ways that we get to flex muscles with the rest of the friends that we have made all around the world. It can be an addiction, and I think that parents have a lot to do to ensure that things work better when it comes to that.