Can a Bard's Countersong be used to give a new save to those already under the effect of a Yeth Hound's Bay special ability?
I suppose I'm mostly confused if the Bay effect is considered instantaneous. The Yeth Hound doesn't have to maintain it, they just bark/howl, and people panic for a number of rounds (if they fail their save). Once they're panicked, it doesn't feel like there's any sonic aspect to counter anymore... But the actually ability is sonic based, so...
They're coming up to a boss battle where this could have a large impact on their chance of success, and I know it'll come up.
Thanks in advance!
If a creature within range of the countersong is already under the effect of a noninstantaneous sonic or language-dependent magical attack, it gains another saving throw against the effect each round it hears the countersong...
Bay (Su): When a yeth hound howls or barks, all creatures except other evil outsiders within a 300-foot spread must succeed on a DC 12 Will save or become panicked for 2d4 rounds. This is a sonic mind-affecting fear effect. Whether or not the save is successful, an affected creature is immune to the same hound's bay for 24 hours. The save DC is Charisma-based.
I would say no because, to me, the Bay is instantaneous. It howls and then it is done. Just the result of the Bay, becoming panicked, lasts afterwards.