IS Speed Demon build still viable (because of Lich Bane nerf)

What I like about Teemo is teh speed to support all lime and run away like crazy... But I love a bit of tankyness too, since Teemo is hated so much

I need some advice to see if its viable.

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So I wanna know a way to make Teemo fast to get away those who manage to surprise him while doing enough damage to not fall behind

Heres what I thought so far:

Runes: 3x Quint of mouvement speed

x9 Glyph of Scaling Magic Resist

9x Seal of Health

9x Mark of Magic Penetration

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Masteries 21 - 9 - 0

With CD at 5% and with the +3% of Health

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