So while playing with a friend recently, It occurred to me that while there's Harmonize (+1 channeling for anything with channeling trait) could we ever see basically a curse to cause -1 Channeling?
Would be useful to shut down the economy of spawnpoints, familiars, and the ubiquitous Battle Forge. Or maybe even hurt a mage themselves for mana. Of course it'll be a quick target for a dispell, but so are a lot of other enchantments like a Ghoul Rot, Finite Life, Mind Control, Magebane, etc.
So would this be something viable?