Well, as nice as Dragon's resistances are, it's hard to be a tank when you can be vaporized by any given draco meteor/outrage. Then again, the same could be said about Skarmory with special fire/electric attacks, and flygon is one of the hardest pokemon to kill when played right.
I wonder if Flygon would be played as a Utility pokemon if it had 5 more points of base speed and Stealth Rock. I imagine it could, roosting, U-Turning, and throwing up rocks when it gets the chance-- plus using it's awesome immunity to spikes/t-spikes/sand/t-wave immunities and SR resist to keep going and going. Gives an idea of the potential for dragon to be used for non-sweeper purposes (though most of the qualities about flygon that would be appealing from a support-aspect come from its ground type, healing move and levitate, rather from being a dragon side-- the same qualities gliscor has).
I wonder if Flygon would be played as a Utility pokemon if it had 5 more points of base speed and Stealth Rock. I imagine it could, roosting, U-Turning, and throwing up rocks when it gets the chance-- plus using it's awesome immunity to spikes/t-spikes/sand/t-wave immunities and SR resist to keep going and going. Gives an idea of the potential for dragon to be used for non-sweeper purposes (though most of the qualities about flygon that would be appealing from a support-aspect come from its ground type, healing move and levitate, rather from being a dragon side-- the same qualities gliscor has).