A warlock can't survive in the WOW GOLD without them.
When you are running an instance, you should have the group leader mark the most powerful target for you to send your minion in to fight. This will also mark which mob is the most powerful for you, so you can cast all the DOT (damage over time) spells on it to help bring it down sooner. By using your minion as the tank for your group, you can allow other casters in the group to throw their best at the mob and keep all the damage on your minion. One thing that you will need to watch for is your minion's health when you are in battle. If you don't keep an eye on their health, your minion can be killed at a crucial time in battle and can cost you a fight if you aren't vigilant. You can use your life tap to give your minion health and allow them to keep fighting for you, and then restore your health when the fight is over. No matter which minion you are partial to, one thing is certain, a warlock can't survive in the WOW GOLD without them. So you should learn how to tank with them and use them to your advantage throughout your time in the WOW GOLD.