Drawn by  human

Part 1 - http://www.furaffinity.net/view/10372324/

Warblazer stands and admires his work as Anvil's assimulation completes. The now fully robotic horse gazes out as the programming in his head begins to take effect. Unlike the other alien programming that forces all its subjects to obey only them, his programming turns him into Warblazer's minion. Since Warblazer's program is to work for the aliens it technically achieves the same purpose.

Soon the two of them will find other horses to convert into robots and a Nightmare herd will start forming. Bent on bringing a new terror with them as their fiery manes and tails spread horror and fear to all their victims.

Of course, MLP horses (ponies/bronies) will be burned on sight. :P