Bug Talent: Blood Parasite. The worm does come out, but it does not generate life to the death knight, which for each blow that the worm gives should heal the death knight a little. Without this talent in tank you will have a hard time holding off bosses.
The only reference I found of the talent is: https://www.wowhead.com/spell=195679/bloodworms#news
But as of patch 7.0.1 they changed the name of the talent.
The only reference I found of the talent is: https://www.wowhead.com/spell=195679/bloodworms#news
But as of patch 7.0.1 they changed the name of the talent.
