Health:

• Normal:  3,900,000
• Heroic:  12,000,000

Abilities:

Both Phases:

• Devouring Flame:  Spits a Lava Bomb at an enemy, inflicting 8788 to 10212 Fire damage and deals 8788 to 10212 fire damage every 1 second to anyone staying within 6 yards of the impact, lasts 25 seconds. 1.5 sec cast

Air Phase Only:

• Fireball:  Inflicts 12025 to 13975 Fire damage to an enemy.

Ground Phase Only:

• Flame Buffet:  Increases the Fire damage an enemy takes by 1500 for 1 min. Stacks up to 99 times.
• Wing Buffet:  Knocks back enemies in a radius around the caster. 1.5 sec cast
• Flame Breath:  Inflicts 17500 to 22500 Fire damage to enemies in a cone in front of the caster. 50 yd range, 2.5 sec cast

The Fight:

This is a fairly straightfoward fight.   Razorscale starts in the air, merely bombarding us with fire we avoid.  Don't stand in BLUE FIRE.

On the ground, there will be NPCs we have to defend from adds, as they will be repairing harpoon turrets.   DPS should take care of the adds as priority.   Adds will spawn from randomly appearing mole drills.

Sentinels are the vyrkuls and should be killed asap, whirlwinds are most lethal.   Watchers are the slightly smaller dwarves that shoot out chain lightning, another significnt source of damage, and should be handled next.    Guardians are the weaklings to be taken care of.

After a turret is repaired, we can click on em and fire at Razorscale, dragging her to the ground a bit.  After 4 harpoons are hit (2 in normal), she is stunned on the ground for a minute.  This is where dps goes all out on her.   The raid should be ready before the last harpoon is fired, i.e. adds mostly cleared.  After the stun wears off, she'll take off again, and we'd have to repeat this.

It should only take 2-3 ground phases before we force her to the ground.  Heroism would be best used the 2nd time she's on the ground to avoid the 3rd phase.   If she does take off, do not push her over in the air, she retains aggro, so if a tank is handling adds and not prepared to taunt, you may be fucked.

When we get her to 50% health, she'll stay on the ground, and it becomes a standard tank and spank fight.   Stay away from the front, avoid the fires, collect loot.    The Flame Buffet serves as a soft enrage so go all out.

Achievements:

A Quick Shave:  Defeat Razorscale without allowing her to fly into the air more than once on Normal/Heroic Difficulty.

This is easy with the dps.  Heroism on 2nd ground phase to better ensure it.

Iron Dwarf, Medium Rare:  Defeat 25/50 Dark Rune Guardian Dwarves with Razorscale's Flame Breath on Normal/Heroic Difficulty.

This is a progressive achievement.  Meaning we don't have to do it in one sitting.  Can slowly accumulate it over 4 years if you want.

Anyways, the goal is to get the Guardians into the Ground Phase, and have Razorscale's Flame Breath finish them off.

Because of all the damage, you might not want to bring all that spawned into Ground Phase, just what you can.   Basically means don't aoe those, drag em in front of her, ???, profit.

Anyways, repeat as many weeks as it takes til you get this.

Sources:

• http://www.mmo-champion.com/index.php?page=840
• http://www.wowwiki.com/Razorscale