Nope, RAW they don't have to as the model only counts as a casualty (i.e. is destroyed, which is necessary for having to take a panic test) if the rebirth roll fails.GenePhelps wrote:
A Phoenix loses it's last wound in combat
It rolls the 5+ and places the marker on the board
Do the friendly units within 6" take panic checks?
This might change with the next update though
