Does teaching us blink mean we have to fight? No. What it does show is that, at some point in the past, warlocks trusted hunters enough to teach them blink. And the invisibility? Its meant for fighting the darkness as they cannot see an invisible hunter. Not to be used in killing fellow guardians in the crucible. As for the beer... I'm not sure what that word means. I do have vodka as well however, if you would prefer that.