Vanessa VanCleef ( tactics ) Vanessa VanCleef is a bonus boss in the Deadmines , available only on Heroic difficulty . Tactics summary . Gauntlet : Use the valves to escape the forge . Run down the ramp , avoiding the flames , to fight Glubtok near the forge room exit door . Avoid the falling ice target areas . Once Glubtok is dead , fight Helix in the same place ; ignore the spiders . Once Helix is dead , go through the door and avoid the spinning electrical beams . At the next door is Foe Reaper . Kill him and go through the door . From this point you will start to gain a stacking movement speed buff , so don ' t fall into the water . Kill the first group of worgen at the beginning of the dock , the second group at the end of the dock , and James Harrington ( another worgen ) on the scaffolding that leads up to the top deck . Vanessa : Once back up at the top , engage Vanessa VanCleef . Kill all the adds that spawn . When she sets the explosives , run to the far side of the upper deck and click on a rope to swing out . As soon as you ' re back , hit her to stop Vengeance of VanCleef from stacking up . The explosives / rope swing / Vengeance cycle repeats one more time . At the end , when she gets down to low health , she ' ll set off a suicide bomb . Move to the edge of the upper deck and wait until she dies ( anyone too close will be killed by the explosion ) . Strategy . The encounter begins in a gauntlet . First the players must release themselves from custody using the steam pressure vents before they will be cast down into the lava . After that the first nightmare sequence will start . The room will be filled with fire and the icicles ( similiar to the ones from the Hodir encounter ) will fall . The nightmare will shift when the players reach the exit door from the foundry and must eliminate the spider mobs . When done , the nightmare will shift again . Now players must reach the Ironclad Cove , avoiding the spinning spark walls and destroying red sparks on the way . Next , they must save the Harrington family members by killing a number of worgen attacking them . After that sequence the nightmare elixir will lose its grip upon the players . Pull the boss to continue the fight . The second phase is pretty simple . During the fight , melee and caster adds will spawn and aid Vanessa . When she is reduced to 50 % health she will flee and detonate the explosives on the ship . Players must escape using the ropes at the Side of the boat , where Ripsnarl was standing before he was pulled . The ropes have a mount arrow , and must be taken in order by players to avoid conflicts with rope choices . The ropes then swing players away from the boat which will then explode . The ropes will swing players back onto the boat , and at that point the boat will be on fire . Vanessa will announce that there is another set of charges about to explode , and players must take the ropes off the boat again and swing back . Once she is damaged down to 1 % of her health , she will jump off to take her own life . NOTE : If you are a druid , you MUST shift out of Cat / Bear / Moonkin form to use the ropes , otherwise you will get a ' cannot use this while shapeshifted ' error and likely get killed by the bomb blasts .