For any vocation, keep diagonal to avoid the waves.
Mages: Use Mana Shield if you are under level 35, Summons don't do well; it is best to run it and use energy based attacks.
Paladins: Level 20 or more and distance skills of 55 or more.
Knights: Just melee them and lure with caution. You can find another hatchlings and ever Frost Dragons. Skill 70/70 and a good one-handed weapon may help.