Question about Lucky and Blood Vengeance
 

Concerning the unit attribute lucky, I wonder if it only works against physical attack (melee and arrow). Does it work against spells? Like fireball, wrathful sky etc. Also does it save the unit 50% of time against instant kill spell like soul slay or charm? What about spells that produce stun or paralyzation damages?

The same question can be asked about Blood vengeance as well. I know blood vengence may reflect physical and even spell damage, but what about AOE spell damage or battlefield spell damage? How about status change like paralyze?

Re: Question about Lucky and Blood Vengeance
 

Luck protects against spells, yes -- specifically, the HP damage. It offers no protection against other effects, like being cursed, horror-marked, chilled, set on fire (the resulting HP loss might be protected against, but not the ignition itself, I think), or so forth.

I think it's also the case that it works against Soul Slay -- instant-death spells are actually treated as ~1000 AN damage (which, against -most- things, is instant death; GoH'd in-dominion Sphinxes and heroically obese/tough Tartarians excepted) as can be seen as the damage taken from these spells actually varies. It would not protect against Charm, as that's not hp damage. The same lack-of-protection would hold for stun and paralysis.

My suspicion is that blood vengeance works the same way -- it's probably something checked in a function that deals hit point damage. If it's a check invoked in a hit point damage function, whether or not it came from an AoE effect or enchantment should not matter. One could always create a test map with the Slave to Unreason (who has the highest BV in the unmodded game, AFAIK).

Re: Question about Lucky and Blood Vengeance
 

As far as surviving a Soul Slay, there's also the possibility of a Sphinx (= pretender hp bonus) of MA Agartha (=golem cult hp bonus) under the effect of Gift of Health (= hp bonus) in dominion 10. Nasty!

Can't answer the original question.