Can Player C use Ride the Wind to move a unit into a showdown between Player A and Player B?

Ruling: No, Player C cannot use Ride the Wind to move a unit into a showdown between Player A and Player B. Any action that would result in units from 3 players occupying the same battlefield is illegal and cannot resolve.

Nuances:

• You cannot select targets for abilities in a way that would lead to three players on one battlefield
• In 2v2 games, this rule remains the same (your partner's cards still count as a separate player), with the additional restriction that you cannot attack your teammate's battlefield