Ash Zombie

Ash Zombie
From somewhere in the darkness, a gurgling moan is heard. A form lurches into view, dragging one foot as it raises bloated arms and broken hands. The zombie advances, driven to kill anyone too slow to escape its grasp.
Ash Zombies
These zombies were created by the magical devastation when Mount Hotenow erupted thirty years ago. They use the zombie stat block, with the following additional trait.
Ash Puff
The first time the zombie takes damage, any living creature within 5 feet of the zombie must succeed on a 10 Constitution saving throw or gain disadvantage on attack rolls, saving throws, and ability checks for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on it early with a successful save.