Hammer is a member of Red Winter and a villain from Champions Online, she is the partner-in-crime of Sickle as well as his wife: the two symbolizing the "Hammer and Sickle" of Communist rule, as such they are the two most senior members of Red Winter next to Soviet Guard himself and act as his personal enforcers in most battles.

Hammer has a large hammer-shaped fist weapon, fitting to her name and is never seen with Sickle - in turn the pair are rarely seen without Soviet Guard: making the group especially dangerous.