In combat between Ahri and Wielder of Water, who wins and does turn order matter?

Ruling: Ahri wins the combat regardless of who is the attacker. Wielder of Water starts at 4 might but Ahri reduces it to 2, making Ahri the winner.

Sequence:

• Wielder of Water gets +2 might when showdown opens (passive ability)
• Ahri's "When I Attack" trigger goes on the initial chain
• Ahri's ability resolves, reducing Wielder's might by 2
• Final might: Ahri wins vs Wielder at 2 might

Nuances:

• This interaction is not turn player dependent because Wielder's ability is passive (applies when showdown opens), while Ahri's is a triggered ability
• If Wielder had a "When I Attack" or "When I Defend" trigger instead, it would be turn player dependent, with triggers going on the initial chain in order: When I Attack, then When I Defend, resolving in reverse order