Infusions working on undeads

[Strongpoint]

But in totally different way.
Inspired by the undead ego tread and problem that true undead should have infusions disabled...

What if instead infusions worked in some very different, blight related way? Like... Hmmm.... Healing infusion reducing player's HP and doing a blight area attack instead

[HousePet]

This is why the game should have more blight inscriptions.