When playing Sett Brawler with Volibear's Legend ability, does Sett get his buff and become Mighty before triggering Volibear's ability?

Ruling: Sett does not become Mighty in time to trigger Volibear's Legend ability. Volibear triggers when you play a unit that is already Mighty at the moment of play, not after the unit resolves its own "When Played" effect.

Nuances:

• Playing Sett next to Yellow Darius would work because Darius makes Sett Mighty as soon as he is played
• Playing Sett directly to Trifarian War Camp would also work for the same reason