- Below 15HP
- Make sure your main character is close to her when she gets her turn
- And naturally she must not be silenced, stunned, feared or any such Crowd Control effect
- If she is healed back above 15HP by her Masked Tiefling lady, then she has to be brought under the threshold again until she gets her turn.
I never used water to put out the cage though as I just click the button, but that could be a reason why she doesn't trigger because the Hag has to be able to reach Mayrina. So be sure she is freed from the cage during the fight so the Hag can also perform her trickery phase with Mayrina.
