- A reference guide and manual in Russian for Heroes 3.

Many monsters have their own special abilities. What is the percentage chance of these abilities triggering, and is it possible to predict them in any way? (For example, the blinding ability of unicorns).

I'm quoting myself:

Unicorn (Battle Unicorn) has a 20% chance of blinding the enemy (similar to the Blind spell). It emits a magical aura that grants 20% magic resistance to all its warriors on adjacent squares.

This is stated in the reference guide. The information is taken from official sources. So, I don't quite understand what you mean by "predict it somehow"? On average, one out of five attempts will be successful.
Is that prediction? I don't think so –