[@Afro Samurai] powersets are usually around one or two things, but have had multiple expressions.  For example, Izkry and Anton are electricity/tech, and they can control machines and shoot lightning or shock people.  Oscar can control liquids -- freeze them, boil them, move them around.  There's a healer, who can also diagnose people just by looking, to some extent, and a guy with superior physical attributes -- strength, speed, and endurance.

Basically, not many, but how you can employ those powers is the fun part.  Someone that can talk to animals might be able to train them, have them spy, see through their eyes even, or just have them take messages.  A fire user could light or extinguish fires, but also generate heat and grab hot things without being burned.  A water user could drown a man just by putting water in his lungs.  Like that.  ^.^