I just did a test of 148 mp which would be 74 half and did the ability 10 times and all 10 times I only hit twice never once and never more than twice?

Zacks dancing terror states that the stacks are random on half the mp 10s digit if 0 you hit 1. However a example I have 104 mp so half would be 52 so I would hit 5 times but instead I only hit once is this a bug?

<t>Her ability where are you looking isint described too well. Attack single target at random at half health 10 digit +1. Now I used this ability a lot and I still don't understand it what decides how many hits because it always seems like it's random can someone describe this skill better to me. Al...