Originally Posted by
quran
That's because you have to think about there being 2 different specs that use completely different spells. Affliction uses no destruction spells, while destruction uses 2 or 3 affliction spells. Demonology is a mix of the two so that tree doesn't matter. Looking at rogues, they use mainly the same spells, there is no obvious boundary. Of course you choose some spells over the other, but you will never, ever see a destruction warlock casting shadow bolt, drain life, etc. or an affliction warlock casting immolate, soul fire, the burn spell (play german client: Verbrennen), etc.