Can Sett's Legend ability be used to save a buffed unit that would die from Icathian Rain while the unit is on the bench (not in combat)?

Ruling: Sett's ability can be used any time a buffed unit would die, regardless of whether it's in combat or not. The ability consumes the buff on the unit to save it, moves it to the base if it wasn't already there, and exhausts it.

Sequence:

• Buffed unit would die (from any source, including Icathian Rain)
• Sett's ability activates, consuming the buff
• Unit is saved and moved to base (if not already there)
• Unit becomes exhausted

Nuances:

• If the unit was already at the base when it would die, it stays at the base
• The unit becomes exhausted after the effect regardless of location