Heroes 6 - Discussion

5*1.5=7.5, you killed 7 creatures and took away half the HP from the 8th.

However, this doesn't significantly increase the importance of luck. In my opinion, luck is only useful for Demons; the rest are neither helped nor hindered by it. Defense is useful for Humans, and to a lesser extent, for Nagas and Orcs, in my opinion (the former due to their racial ability, the latter because they are factions that play well with attack-based strategies).