Anything I should know about Rumble before buying him?

When playing Rumble what should I do? Is his W his escape or no? What is Rumble's role? Any tips you can spare please do. And what items and runes should I get for Rumble? Who counters Rumble and who can he ***dominate***? For spells I was thinking maybe {{summoner:4}} {{summoner:12}} And for start getting {{item:1076}} {{item:2003}} Should I play offensively or just poke as much as I can or farm? Also can Rumble do anything else **besides** solo top?
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