In this mod, Alexander aka A_K_ZyZop added four new monsters. He used some unused creature slots in unit table. This mod contained one unfinished campaign and introduced animated trees. The creatures weren't new in graphical manner, just copied and renamed defs of old creatures. The mod also fixed some graphical issues, few bugs of game and allowed to modify the quality of sound
The creatures are a real challenge, because their stats are very high.
This add-on is not compatible with WOG, but can be made compatible with some copy-pasting and renaming of files.