This is Dark Spyro in his Vizard form from Spyro: the Guardian of Souls
. I prefer to call this his Berserker form. This is the form he takes when the Hollow in him takes control. It would also explain whey whenever he became Dark Spyro, he couldn't control himself.
I'll admit that this is just a re-coloration of Spyro. This design is in fact an earlier version of Vizard Spyro. But the eyes made me think it fit's Dark Spyro better.
The main detail I should point out is his eyes I made them so that they glow in a way that they shine through the darkness that he himself is creating.
Is it my imagination, or does Spyro's controlled Vizard form look more menacing than his uncontrolled form? How I see it, they would be the other way around. This being the controlled form, and the other being his Hollow controlled form.[link]