Here's what I mean:

If the Azure Fang has the healing standard attack but gets controlled by something that prevents it (like chaos or immobile), if that control effect gets removed after her turn to use her standard attack is already passed, she will use it immediately anyways.

For example, Great Ninja War Sakura's Katsuyu summons always use their heal at the end of the turn after all lineup ninjas have already used their standard attacks. if the Azure Fang was hit by chaos and was unable to use her standard attack that turn, once those Katsuyu summons cure her, she will always use her standard attack at the end of the turn.

No other ninja that I know of behaves like this. It makes it almost impossible to prevent the Azure Fang from healing.