Well if you're stuck in sub-optimal scenarios you've gotta take sub-optimal masteries to make up for it I suppose.

http://www.mobafire.com/league-of-legends/build/duffs-336706
Come hang out when I'm streaming! http://www.twitch.tv/dufftime
You need to log in before commenting.
Sometimes vamp is better.
I have literally had games where I make the switch in champ select. I do this when I'm laning with a non heal support.
YES. I auto attack the hell out of creeps to keep my hp up. NO I do not get instaganked because if my support doesn't buy wards I just go buy them myself.
Sometimes you just don't want to start boots 3 pots because someone didn't own soraka. 6% lifesteal (including dorans) IS half of a vamp scepter at lvl 1 +100 hp +10 ad.
SOMETIMES ITS WORTH IT!