Ethnos
Does a Centaur leader need to place a Control marker to trigger its ability to play another band?
The Centaur text makes the extra band conditional on being able to place a marker.
- Ethnos rulebook · Rulebook · Tribe of Centaurs
Yes. The extra band only comes when the Centaur-led band actually places a Control marker. A Centaur band that places no marker does not trigger it.