Originally Posted by hypo

But a lvl 1 unit should be able to kill a 60hp boss, no?

Or is it another 1HP hit boss?

It's a 1 hp/hit boss, but it deals a bit more damage, so a unit with only a single lvl 1 2* or 3* normally deals only 1 damage. Dealing more than 10 damage is really unnecessary, these are the most typical bosses where one allows every ally to make a hit, and you finish it off at the end of the day, or the next day.