I think not possible because each monster in .BMD has movements, alternatively though u can surely do it by replacing animations etc but problem then if u put Budge Dragon to hit you like a skeleton then it might look buggy cuz the size of the Budge Dragon and Skeleton are different, which still means its possible by re-working the monster you want to assign a specific skill from other monsters skill
cuz its all about animations i guess of each .BMD 'MONSTER'
ex: skill ID XX = animation XX
if i am right.. even though i never thought about that lets find out.
Just need assign effect of skill. Send packet from gs with new skill protocol recv in main check the number skill from mob and drawskilleffect is not hard. Sorry but i cant help you more
since im using igcn season 9 files there is in server files few configs regarding monster skill's ive tried changed some stuff in there and assigned spider with boss skills theres slight problem the skill seems like it works spider stuns me quite often from time to time use some skill to push me around but the problem is it doesnt show the skill effect. so im guessing need to edit something like main or gs for the actual effect because i havent found anywhere where to assign effects of skills. it would suffice if i could get atleast monster do sm skills like inferno etc... any idea how to do that?