Can Sett Leader's effect save a unit that has +1 might from a battlefield effect, or does the unit need to have an actual buff counter?

Ruling: Only units with a physical buff counter (from an effect that specifically uses the word "buff") can be saved by Sett Leader's effect. +1 might effects and buffs are not the same thing.

Nuances:

• Battlefield effects that grant +1 might do not count as buffs
• The effect must specifically say the word "buff" to create a buff counter that can be spent