summary, differences, 4th and Saga Edition

[MarkB]

4e has at-will, encounter and daily powers.

Saga just has encounter powers (and they can be regained more easily during combat too)

Most forms of healing in Saga are effectively Daily effects, as I recall (though daily from the viewpoint of the recipient, not the user). Which puts it rather at the opposite end of the scale from 4e in terms of multi-encounter survivability.