I was wondering what exactly Lifedrain does. If I understand Granite Golem's guide correctly (using google translate) it will automatically reduce the hits of all enemy units by 1 (or whatever the bonus is) at the start of the battle. Is that right? And will the unit with Liefdrain gain any bonus hits with that?

Essentially if I am reading it right it acts as the opposite of Hits (grp). Is that right?

Dragatus,

You are correct, it's exactly the opposite of Group Hits. The unit(s) with Lifedrain do not get any bonus hits and units with 1 hit are obviously immune to being Lifedrained since they are already at 1 hit.

The Vampire is after all, the anti-Priest

KGB

dont remember if its covered in GGs guide, there are 2 nuances:
1. lifedrain is applied before group hits
2. keep 'Lifedrain' spell on, otherwise its effect isnt doubled when the caster reaches level 6.

Oh, that's good to know. And it never gets to +3, right?

i'm not sure but i think it gets, if you never switch it off from before level 6.
but yes, devs intention was to make it double at level 9 not level 6.