Reverse: 1999 - A Nightmare At Green Lake - Hard Mode 12 - Rapid And Furious 2-Star Clear

Fun run, wanted to upload to show how I went about beating this fight. Found it the hardest of the entire Hard Mode set for this event.

Update: Since it might actually prove insightful/helpful for this from the discussion in chat (the crit of Tooth Fairy's Ult being an important part of the puzzle for its Cleanse effect), Tooth Fairy stats: http://tinyurl.com/usak7h2s

Best approach I have found is to look to drop Confusion/Tooth Debuff or YOLO the Crit Chance on her Ult (around 50% so its a coin flip), and then load up as much damage as possible while you have a window of opportunity.

Regulus' Ult is also great for survival, even if you have to use it without her passive up. Helps buffer downtime between Tooth's ability to heal/cleanse. Note: While you will dodge getting hit with Regulus' ult, it will not dodge the Pollution stacks being added.

Bkorn's Ult can also buy you time as it will shut down an Ult or burst out an enemy to kill it (also Bkorn's Ult shutdown will persist through the second life of the enemy). I use this trick at 01:33.

While you have a lot of stacks of Pollution, look to spend more turns shuffling for passive Moxie.