Keep your helmet on, there are sparrow oaks in this forest.
The hardest part about dealing with a ratwood tree is by the time you find it, there are dozens more you haven't found yet.
A coveted tree, 100 words
High above the lands of the living, where frost and howling of the wind reign, the morbid monument to a faith long dead calls the deceased on a last pilgrimage.
The PCs are exploring the catacombs beneath a Colosseum-in-Rome type of structure, when they come across a foul-smelling, stagnant, ankle-deep with algae, public mass latrine. Countless urinals of marble, line this rather large chamber equally crafted of marble. Whatever system of plumbing once worked here, has not in many years. Old graffiti lines the stained,dirty walls, prominently bolded are such intellectual poetic musings as, "Urine For It Now", "I Pee Therefore It Comes" and "Now Urine Trouble".
A few moments after the PCs get to take in this unpleasant location, they hear the low rumbling of ancient plumbing and rather large Urine Elemental rises like a great, wet, wave of filth to attack them. The creature reeks and exudes noxious debilitating fumes, while its liquid strikes burn flesh like acid.