Hey guys,
Been awhile since I have been on this site, as I stopped playing WoW a year ago. Now that D3 is out I have returned. I once was a donator but have not re-donated since returning. I learned this trick and did not see it posted and I can not see the elite forum.
Anyways I know this works for the Wizard class for sure and may work for Witch doctor as well as I know they have some summoning spells. Not sure about the other classes as I don't know much about any of them other than Wiz.
*Talking with a friend who is a Witch Doc, he said that all their summoning spells are on CD so don't think this will work for them.
So for this trick all you need is a weapon with "Life on Kill" and the Hydra spell on your action bar. Does not have to be a good weapon and the only stat you care about is the "Life on Kill". This weapon will stay in your bag and be used only for this trick.
When you have the weapon equipped and spam the Hydra spell (summoning a new and de-summoning the old) the game reads that as a kill, giving you the "Life on Kill" from the weapon. So just spam Hydra until full then swap back your main weapon. I use this for kiting and get enough distance pop open my inventory, quickly swap and spam and back to full life.
I have not tested nor tried it out on any other class so can not confirm if it works for anyone else. I hope this helps someone! If this has been posted and I missed it I apologize, I did not see it when I searched for it.