Hi, and thanks for the report!
Mother Talzin's zeta Leadership ability states: "When a Nightsister ally uses a Basic ability during their turn, a random defeated Nightsister ally is REvived with 50% Health and called to Assist, then the Revived ally is immediately defeated unless an enemy was defeated (the Revived ally can't be Revived by this effect again until the end of the next turn).
Because of this limitation, Daka can't be revived every turn - she can only be revived every other turn. If two eligible Nightsisters are dead, then basic attacks will alternate between the two dead Nightsisters each turn.
Is it possible this behavior was causing the intermittent (and unexpected) lack of Revives during basic attacks?
This could indeed be the reason, though without a suitable battle to test in I'm unable to attempt a reproduction.
