Yes, an extra turn is a turn.  But your tm does not advance so you still get your next turn when you would have.  If I'm not mistaken your skills cooldown 1 turn like any other turn.

draco morph has no chance with relenrless but as a extra hit he can keep his defence 

...what?

this

Not entirely sure what you're asking or confused about.

I think he was telling us that an extra turn counts as a regular turn

makes complete sense 🤔