You’d think a high level Necromancer-I-mean-Warlock spell might look something like:
Awesome Demon Rats
100 Mana
1.5 seconds Cast Time
Targeted opponent is devoured by a swarm of awesome demon rats with glowing red eyes, leaving nothing but his polished bones to commemorate your bad-assedness.
but instead the spell you get at level 83 is:
Dark Intent
6% of base mana
Instant cast
You link yourself with the targeted friendly target, increasing both of your haste by 3%.When you or the linked target gains a critical periodic damage or healing effect, the other gains increased periodic damage and healing lasting for 7 sec. You gain 3%, while the target gains 1%. Stacks up to 3 times.
Ha-cha-cha, eh? The name is great, Dark Intent, muhahaha, but… So me and some ally get 3% faster and… some other stuff… which lasts seven seconds… and is… probably good… or something…
Picturing warlocks going around with green eyeshades now!
ceoln 
Hm?