I made 3 Mega Flygons!!!

Mega Flygon X, Y and Z and their shinies

X is taking inspiration from Mega Feraligatr and using Trapinch as a base, it's also my favorite. (Bug/Dragon)

Would gain 60 points in its physical attack
Would gain 10 points in its physical defense and special defense each
Would lose 20 points in its special attack
Would gain 40 points in its speed

Y is Just moving the Pokemon FURTHER, expanding on what Flygon has not what it's pre evolutions have. (Ground/Dragon)

Would gain 20 points in its physical attack
Would gain 20 points in its physical defense and special defense each
Would gain 40 points in its speed

Z is basically a fusion of Flygon and Vibrava. (Flying/Dragon)

Would lose 20 points in its physical attack
Would lose 30 points in its physical defense and special defense each
Would gain 80 points in its special attack
Would gain 100 points in its speed

Edit: For some reasons the Images are labeled with Flagon instead of Flygon