The warlock is a very fun and rewarding class to play, but it takes a lot of skill and finesse to play a warlock to its full potential. As a warlock, you will need to learn to use your pets, manage your threat, and collect Soul Shards. As you grow in levels, your strategies will change slightly, you will have to learn to adapt to new situations and new spells. But however your strategy adjusts, it can usually be boiled down into a few basic concepts. Soulburn has no mana or health costs and is off the global cooldown, but has a 45-second cooldown. Secondary effects are outlined here.