Daemons of Tzeentch have the Hatred (Daemons of Nurgle) special rule, and re-roll ward save results of 1. Wizards with the Daemon of Tzeentch special rule can also re-roll channelling results of 1.
Source: Warhammer Fantasy: 8th Edition
Daemons of Tzeentch have the Hatred (Daemons of Nurgle) special rule, and re-roll ward save results of 1. Wizards with the Daemon of Tzeentch special rule can also re-roll channelling results of 1.