Gidonihah |
Just reading the text Melkiador quoted, it looks like it's independent of the barbarian. For mechanics purposes, the GM likely decides based on available targets and chooses one adjacent at the start of the barbarian's turn. If none, then a target at the end of their turn if they moved adjacent. I probably wouldn't have the spirits otherwise 'delaying' or 'holding' their attack off turn (if another attacker runs up or runs past) like it was a readied action or something (if I did, I would then feel obligated to give the spirits their own initiative to 'reset' their attack before they could attack again, and that kind of method tends to lead to forgetting about them or their action).
In other words, it doesn't require an action by the barbarian for them to attack, but unless there's other wording in the class feature not quoted, they don't choose the target or when it happens, but they can influence it (by only standing adjacent to the desired enemy or holding or delaying their action or rage).
Well there is atleast a FAQ for the targeting part.
Barbarian, Lesser Spirit Totem: Who decides who the spirits attack, and what effects affect the spirits?
The barbarian decides who the spirits attack each round. The spirits are not affected by effects that aid their attacks or damage (such as bardic performance or bless) or penalize their attacks or damage (such as bane or darkness). The spirits always strike from your direction. They do not get flanking bonuses or help a combatant get one.
So what im getting is it doesnt take an action, happens 1/round. But it seems like the timing of when the attack can happen is ambiguous.