Mine Massacre (strategy)

The massive fire-breathing High Dragon that engages you at the Bone Pit is without a doubt one of the toughest boss fights in Dragon Age II. This page may offer some tips and insight on defeating her if you are having trouble.

Abilities
The High Dragon is blessed with the following traits:
 * Cannot be Frozen
 * Immune to Brittle
 * Immune to Enslavement
 * Immune to Explosive Death
 * Immune to Fire-based damage*
 * Immune to Knockback
 * Immune to Knockdown
 * Immune to Immobile
 * Immune to Inevitable Death
 * Immune to Paralysis
 * Immune to Sleep
 * Immune to Slow
 * Immune to Stun

Also, the High Dragon has the following known attacks and abilities:
 * Fire Breath: The High Dragon spews an inferno of fire, dealing massive damage to anything in front of it.
 * Fire Spit: The High Dragon spits out a homing fireball at one of your Party members, exploding on impact. Signifcantly less powerful than Fire Breath.
 * Roar: The High Dragon lets out a ear-splitting roar, stunning anything near it for a brief amount of time.
 * Stomp:
 * Summon Dragonlings: Approximatively, when you lower the High Dragon' health by 25%, it'll perch on a unreachable platform and summon younger dragons to attack you. At 75% health, there'll only be Dragonlings. At 50% health, the Dragonlings will be supported by a normal dragon. At 25% health, this wave is supported by two dragons. Note: the High Dragon can still be attacked with ranged weapons.
 * Tail Swipe:
 * Wing Buffet: