[DMM] Mononofu ~ White Lily Battle Princesses ~-yamagata.png

Okay, I've got a question. What is this girl's last ability talking about with "chance to use 2 skills"? Is it the case that a unit can normally only trigger one skill each turn? I keep seeing Date Masamune's second/third skill seemingly refuse to trigger, and I was wondering if it was because the first one keeps triggering instead.