Here is how the Final Battle goes between Spider-Mare and the Dragon in My Little Pony: The Amazing Spider-Mare.
[We then see the Dragon standing around smelling foe anyone waiting to ambush him]
[Then he pauses, picking up the scent of a cop ambush]
[Suddenly, cops appear from nowhere and shoot him]
The Dragon: [roars in pain]
[He falls down, apparently dead]
[Spider-Mare is then seen talking on a phone with Fluttershy]
Spider-Mare: Come on. Come on. Pick up.
[We see Fluttershy answer her phone]
Fluttershy: Thorax, where are you?
Spider-Mare: I'm where it is. Where are you?