Question about Kenvilar the Spiteful

Hi! Could you please answer me one thing about Kenvilar, because I'm no sure about translation in russian version.
On 1 of the 3 card of Kenvilar about random hero dice - one hero must roll only 1 die or dice value turned to 1?
Thank you very much!
On 1 of the 3 card of Kenvilar about random hero dice - one hero must roll only 1 die or dice value turned to 1?
Thank you very much!