Q: Does Gersh Nubirg write amulets for winning in lottery (or other games of chance)?

A: No, Gersh Nubirg doesn’t deal with such type of amulets. It’s very unadvisable to order an amulet completely pointed to this purpose. There are two consequent main reasons: amulet designed as strict request for particular event of this kind is qualified as “attempt to force G-d’s hand”. Moreover, spiritual forces responsible for immediate raising of financial conditions (which big win in lottery is) are the same spiritual forces that trigger reinforcement of divine judgement; and this is pretty dangerous, like playing with non-isolated high voltage cable.
The better way is just to ask for increased income while not specifying how exactly and how fast it supposed to happen.