Root Spirit's little problem (Patreon)

I was thinking about 'spells' that could be found on territory of Forest Keepers' World, and this is what I found. A restless swamp trees. Overall idea still uncertain, yet I can say, that these trees were somehow polluted by swamps and lost their own Root Spirits (probably Spirits were eaten by those same swamps), and now they (the trees) looking for inattentive Spirits to catch them by force with the help of the muddy slime.