A reserved request on DA  
Stages:  
Stage 1: Blitz as a newborn  
Stage 2: Blitz as a colt and when he got his cutie mark0  
Stage 3: Blitz as a pre-teen  
Stage 4: As a teen, this is where he started growing facial hair and got a piercing.  
Stage 5: Blitz lets his mane and beard grow out  
Stage 6: Blitz lost a wing and replaced it with a mechanical one, got a scar on his eye, his mane and beard start to gray. So he retires and teaches young future Wonderbolts.  
Stage 7: Lost the other wing and got more battle scars and hair grew a bit more, also did is eyebrows.  
Stage 8: An old stallion in his prime, thinking about the youth. His mechanical wings begin to rust and got more battle scars. Found something that made his mane, tail, and eyebrows grow longer. Also started to grow out his fetlocks  
Stage 9: Blitz adopts a new identity, and dyes his mane and tail, and moved to a snowy wasteland, his hair protects him from the cold. Wings are more rusted. And he now wears a robe where he ever goes.  
Stage 10: Almost frozen stiff but still keeps on moving, Blitz’s wings are frozen stiff and cant move them. His mane and tail and long and keep him warm, his robe and scarf are worn out but doesn’t seem to care.