Can Sett's legend ability save units that are already in base, or only units at battlefields?

Ruling: Sett's legend ability can save units in both battlefields and base. If a unit is already in base, it won't recall but will still be saved by spending the buff.

Nuances:

• This follows a "do as much as you can" principle - the recall portion cannot happen if the unit is already in base, but the save effect still occurs