Does Wielder of Water's +2 might apply when it is damaged by Tibbers' play effect (3 damage when played), or only during combat?

Ruling: Wielder of Water only gets +2 might during combat, not when damaged by non-combat effects like Tibbers' play ability.

Nuances:

• Attacker and defender are only assigned during combat
• Shield and Assault keywords work the same way - they only apply during combat
• Even in a showdown where you attack an empty battlefield, you would not get the +2 because there is no combat (no defender)