Does Yi's buff (+2 health and +1 might for defending) apply to a Stalwart Poro defending alone when targeted by removal spells like Gust or damage spells like Bullet Time outside of a showdown?

Ruling: Outside of showdowns, units do not have the Defender status, so Yi's abilities that buff defenders are not active. You can target and remove the unit with spells like Gust, and damage spells will only see the unit's base stats.

Nuances:

• Spells do not initiate showdowns
• Only moving a unit to a battlefield (occupied or unoccupied) initiates a showdown
• The Defender status only exists during showdowns