>>30145133Goodra is the result of a chemical reaction with rainwater painfully melting away Sliggoo's shell. Goodra often instinctively attempt to attack their trainers with their slime in this state, but it is interpreted as affectionate hugging by most trainers due to the harmlessness of it.
To correctly evolve Sliggoo must burrow deep underground away from moisture in order to harden its shell and in turn develop its ability to produce acidic slime.
