Be aware of the waves and beams the wyrm uses, avoid them by standing diagonal. Be careful while running away from this creature, because two of them can send you to your temple. If you are stopped, you must heal with health above 350.
They don't deal very high combos, but they are stronger and faster than normal dragons.
Mages should use Death Strike or Ice Strike. Druids could use Hailstorm Rod or Underworld Rod, while Sorcerers could use Wand of Voodoo. A mage can kill a wyrm alone at level 60, without Mana Shield and healing when necessary. Paladins can easily run these as they would a dragon, but beware of luring other wyrms on yourself. Knight should treat them like weak Dragon Lords. With around 80/75 and at least 800 hp, you should be able to hunt them using only Mana Potions and exura. If you face two at a time, it may be a good idea to run in circles around one so the other cannot hit you. Their melee is often weak and their defence poor, so it's best to fight them in full attack with a good 2 handed weapon like an Avenger, make sure to bring them down quick, as their healing can be quite annoying.