Lakescourge Lotus 2014
CR 5 undead
Medium undead, chaotic evil
While submerged in water it’s ichor taints water within 10 ft. of it. When a creature enters area for the 1st time on a turn or starts its turn there that creature must make DC 15 Con save or be poisoned while it remains in area and for 1 min after it leaves. A poisoned creature that is no longer in the water can re-save at end of each of its turns ending effect on itself on a success. If purify food and drink spell is cast on a space within 5 ft. of lotus or on space it occupies trait ceases to function for 1 min.
Doesn't require air food drink or sleep.
Can walk across surface of water as if it were solid ground. Otherwise works like water walk but isn’t itself magical.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details