Conversation so far:
What are Wesley Dodds' Sandman's special abilities?
Wesley Dodds' Sandman's abilities are Prophetic dreams,Chemist and inventor.
Is Wesley Dodds' Sandman able to fight the criminals?
Wesley Dodds' Sandman has a gas gun to use on criminals.

Question: What does he do with the gas gun?
Self-contained rewrite: What does Wesley Dodds' Sandman do with the gas gun?