Talk:Heimerdinger/@comment-4168772-20140906013113/@comment-5224716-20140907151122

Because upgraded Q is the most reliable source of Heimer's damage. It's great for team fights but I wouldn't use it in 1vs1 or when chasing enemies.

I use upgraded W in 1vs1 when I stun them (or at least slow) with my E so I know I can hit them. It's also really good for picking fleeing enemies and it's great single target burst.

I rarely use the upgraded E, it's just not worth to sacrifice the AOE damage from Q or single target burst from W to engage - it's something that the jungler, toplaner or even support should do, not APC who should deal as much damage as possible.