darkSpyro

With the boss after the ravage rider the big guy with a sword and sheild

i'd say earth breath

Run around and don't let him get too close. When he swings his sword to do a ground pound-type move, jump up so you won't get hit with it. Get as close to him as you can without being stabbed and use dragon time. Run around behind him and melee the snot out of him (but make sure to get out of the way before your time runs out; he hits hard). Repeat. He goes down pretty quickly this way.