Ingvar the Plunderer

Ingvar has two different phases. The first phase will pit you up against the following attacks:

• Staggering Roar – Hits you with 2800 damage to all enemies within 60 yards, interrupting all casts for 6 seconds.
• Smash – Deals 22,500 phsyical damage to all dnemies within 10 yards cone of the caster with a 3 second casting time.
• Enrage – Buff for Ingvar that boosts his attack speed by 5% and his size by 5% per cast with stackability to 50.
• Cleave – 150% of normal melee damage to any enemy and nearest ally.
• After you kill Ingvar the first time, he will be resurrected by Annhylde the Caller and have the following abilities:
• Dreadful Roar – Deals up to 3900 Shadow Damage to all enemies within 60 yards and interrupts all casts for 8 seconds. It also increases shadow damage taken by enemies by 5% with stackability to 40.
• Woe Strike – Deals 200% normal melee damage and the debuff Woe Strike which will cause the healer of any party member with this debuff 1600 Shadow Damage.

Dark Smash – Deals up to 22,500 Shadow Damage to all enemies within 10 yard AoE cone with additional 2200 Shadow Damage to all enemies and a knockdown.

When you first see Ingvar, he will be talking to two other Vyrkul, but once you aggro him, the two fly away and never return, so you can ignore them. You want to tank him at the end of the platform if possible with all casters standing as far away from him as possible. The most devastating abilities he has have long casting times so you can get away from him, but you need to beware o Enrage in Phase 1 due to the stacking ability of the spell.

The key here is to maintain range, get away when he prepares to cast his biggest attacks and never pull aggro due to the potential for Cleave or Smash. Watch the casting bar closely and make sure to have a curse remover in the party for this fight as well.

Source: WOTLK Insider Secrets

Skarvald /Dalronn

This is a two boss combo encounter with Skarvald using Charge, a initiating attack that stuns the enemy for 2 seconds with a 35% damage impact and Stone Strike, an ability that inflicts 100% normal weapon damage and knocks the enemy back. Dalronn has Debilitate which lowers melee attack, casting, movement and ranged attack speeds by 50% while dealing 750 Shadow Damage every 2 seconds for 8 seconds. Additionally, Dalroon has Shadowbolt which deals 3300 Shadow Damage to one enemy.

Tank them both after they are pulled near the ramp where you will first see them. Skarvald will charge a lot and Dalronn will drop aggro often to cast Shadowbolt. You can choose to kill them together or separately – it doesn’t really matter. When one boss dies though, the other creates a spirit of the dead one that will continue to attack you and cannot be defeated. So, it is best to kill them both as close together as possible.

Source: WOTLK Insider Secrets