This is a question about Nimbus of Light (ability in the Sun domain).
I asked on the PFS facebook page but could not get a definitive answer. The text for the ability read like this (question follows):
----------------------
"At 8th level, you can emit a 30-foot nimbus of light for a number of rounds per day equal to your cleric level. This acts as a daylight spell. In addition, undead within this radius take an amount of damage equal to your cleric level each round that they remain inside the nimbus [...]"
----------------------
So the question is, WHEN do undeads take the damage ? On my turn ? On their turn (and if so, at beginning or at the end) ? Or something else ?
Thank you for your replies.