The Dink Network

In the dmod I'm currently working on- in which enemies all have their own special ability, I run everything through their hit() proc. Which made me change from running things via wait() commands. They're still there at the end of the proc in case it doesn't get hit for a while. But most enemies tend to activate abilities based on number of hits taken or percentage of health lost. Others cast spells through the attack() proc, or just activate by chance.

You might be able to use a set_callback_random(); to cast the healing every 2 seconds. I'm not sure if that breaks upon another proc being called or not.