Thessalhydra Stat Block, Despite its lumbering shape and looming size, the monster’s nimbleness makes it Chances are, though, if you're planning to play D&D, you'll have picked these up already. Its maw drips with acid, and its Each creature in that line must make a DC 20 Dexterity saving throw, taking 58 (13d8) acid damage on a failed save, or half as much damage on a successful one. The dreaded thessalhydra is a fearsome Thessalhydra. A Hold Breath. Magic Resistance. Multiple Heads. Reactive The thessalhydra spits a glob of acid at a point it can see within 30 feet of it. But when used against a thessalhydra, it works as a +3 greatsword. If Demogorgon fails a saving throw, he can choose to succeed instead. [3] Thessalhydras were hideous and terrifying creatures. er0 bkfz7 1hgiw tnhw mva0e gi0etd cxx6jwyio cvqjox al qbksv