Originally Posted by
zenga
That is not correct at all. A few things since 4.3:
- cooldown on chain lightning has been removed
- casting earthshock below 7 stacks is a dps loss compared to casting a lightning bolt
- chain lightning is again a viable single target filler, provided it's not glyphed, there is a hard point where lightning bolt becomes better single target than chain lightning, but that is pretty depending on your amount of mastery, haste and spellpower (talking about firelands heroic geared ele)
- if you have 2 piece T12 setbonus (obtainable through justice points), the cooldown reduction on the fire elemental comes from casting lightning bolts, keep that in mind when weaving chain lightning into your rotation, with this set bonus it's really a good idea to use the glyph of fire elemental on most fights
- chain lightning eats mana single target, the moment you have to use a thunderstorm to get mana back you have basically lost the dps gain over lightning bolt