Strengths:

• Shaman regen is > Viper Sting
• Various totems (Poison cleanse)
• Very Fast heals
• Damage that constantly ticks.
• Pet that keeps your healer in combat.
• Water Shield makes Shaman un-drainable
• Nature's Swiftness
• Earthshock silences your healer for a few seconds when cast.
• Can assist on doing heavy burst damage on you by purging your heal over time spells off.
• Grounding Totem to stop CC's

Weaknesses:

• Easy to CC
• Can coordinate kill shot's with CC
• Can kite really easily

Who to keep Pet on:
Don't use a pet

Possible Warlock Talent Spec's (Standard Spec's):
Soul Link / Siphon Life

Possible Shaman Talent Spec's (Standard Spec's):
Restoration

This fight is possibly the second most annoying fight other than Druid/Warlock. Took me an hour and a half playing with Wojo in one game to figure it out and is not exactly easy to accomplish.

The only way to win this, is to kill the Lock pet twice, and burst down the Warlock. Sounds easy right? For this fight I especially recommend Insect Swarm. Especially if they start out with a Voidwalker by scouting in the spawn.

First of all, your never going to drain the Shaman, especially with a pet on them, they are the un-drainable class now and you'll never be able to burst one down with a Warlock Fearing you. This is going to require you to burn through your enemies cooldowns, Nature's Swiftness, Deathcoil, Trinkets to accomplish the killing of the pet.

Next, dismiss your pet, since you're not draining anybody put the pet away, he becomes an expensive mana sink for your Druid to keep him alive.

The best way to do this after the enemy Shaman has burned his trinket is to have your Druid start DPSing the pet (if it's a Voidwalker) with Insect Swarm, you go out and Freeze Trap the Shaman, then your Druid will Cyclone twice, Feral Charge and Bash, and hope in that time you can drop the pet between Insect Swarm. It's preferable to have your trinket ready to go since you will be Feared at least once in this time.

Now the MAIN thing you and your Druid needs to worry about is while you're coordinating this massive CC on the Shaman that the Warlock isn't right behind a pillar summoning another pet in your face while you think your clever CCing of his healer and DPSing the pet.

You have to do this twice, drink a lot, kite your behinds off, then the same CC you put on the Shaman to kill the lock's pet twice. You must do this to the lock to finish him off. I think a Lock without his Soullink is easier to kill than his Voidwalker.