Tithe Drinker's Extort + lifelink

If I activate the extort on the tithe drinker to damage my opponent does that meet the lifelink requirement?  Basically if I activate the Tithe Drinker extort do I gain 2 life? 
I'm thinking not as that would be pretty powerful for the cost.  Also, I believe lifelink has to be combat damage?

Last edited by USMCDaddy (2013-05-23 02:44:42)