Quote Originally Posted by hold View Post
You are right I haven't - because it doesn't make sense.

The General deals physical damage and scales with Max HP. So I use Overwhelming on him what gives the same HP than Mystical plus more ATK. In fact there are 6 Health Overwhelming on my General.

The Soulless Demon deals True Damage and scales of Max HP. In this case I can (and do) use Ward or Overwhelming because I get as much HP as with Mystical plus more damage.

Or am I missing something here?
No, I've determined (by testing them myself) that mystical talismans are a waste on these guys. The green soulless demon benefits by either of the other types of greens more than mystical.