If Kor Phaeron or Lorgar is not chosen as the Warlord of an army that Kor Phaeron is part of, then his Leadership is reduced by -1 and he gains the Hatred (Everything) special rule. When Kor Phaeron is included as the same army as Lorgar, both models gain +1 WS and the Hatred (Everything) special rules while part of the same unit.
Building an army? Create, validate and share your list with New Recruit, army builder for (HH V2) Horus Heresy (2022) and many more games.
Try the builder