very impressive you 2. My only suggest would be is use another aoe spell similair to defile. I havent been able to find a working defile anywhere.
To make them heroic, you just need the valk thing like harry talked about at the end of his last post, HP changes, and the trap. I dont think the trap os very important. I would just have LK start to spawn a aoe ability early in phase 1.
Then valks switching to spells, only occurs on heroic, not on 25man normal
so if should look like 2 scripts and 4 sql
normal script - 10man normal and 25man normal sql files
heroic script- the spell casting valk and trap - and 10man heroic and 25man heroic sql