Every week, WoW Insider brings you Blood Pact for affliction, demonology, and destruction warlocks. This week, Megan O'Neill admits to problems with DoT clipping (*gasp*) and finds a way to fix it.
Every warlock has at least one damage over time effect to take care of. Destruction has Immolate. Demonologists flip between Corruption and Doom (Metamorphosis), though I suppose you could count Shadowflame off Hand of Gul'dan as one. Affliction is the "DoT spec," starring Agony, Corruption, Unstable Affliction, with appearances of Haunt.