Inspired by Waking Nightmares AU by KnightMysterio.https://www.fanfiction.net/s/7360739/1/Waking-Nightmares

Some of the mercenaries from Mann Co start finding themselves in a world dominated by colorful ponies. must admit it is a nice place, the ponies are a very welcome species but slowly the mercenaries start to realize there is a reason why they were brought here and why all of them are somehow connected to the element bearers.
an ancient darkness is gaining strength and if they and their new pony friends cannot stop it, then both their worlds are in grave danger.

Spike accidentally encounter another dragon and this other baby dragon has a brother, those two reveals to Spike that there exist three dragon races which are Sky dragons, Water dragons, and Earth dragons. they are Earth dragons and much to Spike's surprise, they have a hidden history with Equestria's.
Spike has to become a part of this dragon culture and maybe, he will learn why he was handed to Twilight as an egg.

I thank
RainbowDashX12345,
beirirangu,
theponywriter22
and Midnight Radience to give me the inspiration to make this story.

drawing made by me, don't steal.