Well, I would suspect something else... if you have NearInfinity or some other IE editing tool, then you can actually just open the game files and find the "wrath form" spell the BG1 has...
SPWI313 Skull Trap SPWI314 Vampiric Touch SPWI315 Wraith Form SPWI316 Dire Charm SPWI317 Ghost ArmorThat the BG2 doesn't carry:
SPWI313 Skull Trap SPWI314 Vampiric Touch SPWI316 Dire Charm SPWI317 Ghost ArmorAnd export it, rename it and place it in the Tutu's override -folder. The thing wrong is the fact that the Tutu game was converted from a BG2 game, and so there might be more than a few missing resources due to the conversion process.
Edited by The Imp, 29 August 2013 - 01:06 PM.