I've been playing this a lot over the past two days (home sick from school
)) and have gotten somewhat better at it.
In addition to Rylai, who is pretty much my go-to hero, I tried out Sand King and really, really liked him. Burrowstrike is great, and it would have worked even better if Pudge actually hooked after I did it...four times in a row...oh well. ^^ I read online that Kelen's Dagger (for blink) is useful to Blink into heroes after you have started Epicenter; I need to try this, as I had problems getting Epicenter to hit.
Anyways, I plan on getting as much play as possible with these two, as they're my favorite heroes now I think. I just wish Rylai's attack was faster, last hits are hard enough for me without a projectile that takes three seconds to hit. :\
I've also gained a pathological fear of Pudge after watching all my spells bounce and glance off a 5000 (!!!) HP Pudge.
Plus, the hook just scares me. Pudge is damn intimidating.