Deathcuda can be found in a death house. Go to house/castle tours in Wizard City. It is also found in Cyclops lane and Unicorn Way in Wizard City. It is in the entrance hall in Krokotopia. Kembaalung Village which is off of Krokotopia. In Grizzleheim at Helgrind Warren, Mirkholm Keep, and Nordrilund. In Avalon at Caer Lyon.