>Anti-heal is -40% and applies at point blank range except ult >Anti-heal can't affect shields or BHP gain >Blade's vampire mode doesn't work on non-health damage.
Are you sure he's supposed to be anti-tank? He definitely will shred supports trying to peel for each other or patty caking but againest tanks? Just hold your defensive abilities that you usually use while at low health on Blade when he tries to 1v1 you and pummel him into the dirt.