The red dragon's roared past.
After shooting out the first round of dragon breath, it dived down.
The northern witches began to aim their spells at the red dragon in the sky, but there was little magic that could cause fatal damage to it since the adult red dragon had strong spell resistance. Spells below level 3 would hardly do any damage to it; sometimes, it was even impossible to break the dragon scale. Adult red dragons had a 10 point spell reduction. Its body was immune to any spell attack with less than 10 damage, as well as any fire damage.
"Fireball!"
A huge ball of fire came down from the sky.
However, it did not come from the other spellcasters; it came from the dragon.