The amount Absorb-MND drains varies, however I am not certain if it is based on Dark Magic skill or INT. I assume Dark Magic skill. I performed a few tests.
Lv75 RDM/DRK with 200 Dark Magic Skill: +18 from Absorb-MND
Lv75 BLM/DRK with 296 Dark Magic Skill: +18 from Absorb-MND
Lv37 DRK/BLM with 114 Dark Magic Skill: +10 from Absorb-MND
+18 appears to be the cap. Also, the MND Boost effect diminishes over time (roughly -1 per 5 seconds). The effect appears to wear off after 8 "ticks."
It would appear that it is possible to farm this scroll. Go to [ffxiah.com] and look up "Gerhard" on Asura. Judging from his sales, I would say that the evidence would strongly support Orcish Zerkers dropping these. --Ctownwoody 15:18, 26 April 2008 (UTC)
Can someone give me proof on Orcish Zerkers drops? i have a THF75(TH3) that farmed this in Davoi and Monastic Cavern and Castle Zvahl Keep but i have not seen one drop (0/120). --User:Rockie/Sig 03:06, 20 May 2008 (UTC)
I don't have proof in form of a screenshot. However, I can find no other rational explanation for "Gerhard"'s AH history. I'm not willing to rule out the irrational but it might be worth getting 100 in each location before saying that it is not possible. --Ctownwoody 17:21, 31 May 2008 (UTC)
Its sold from a vendor in Bastok, its not uncommon for people to buy scrolls from NPCs and resell them at the AH due to the fact most people will pay 10-15k extra for a spell because they are unaware of the NPC —BioShark 04:15, 11 July 2008 (UTC)