Hearthpwn

    "Even though most of the casters were dismissing Cifka’s Bloom Warlock, he managed to pull through while RDU felt very comfortable with his lineup. StanCifka won the tournament, with RDU and C4mlann taking the second and third place."

     "The second archetype [Bloomlock] was more on the control side having Jaraxxus, Medivh and the new Elise, which focuses mainly on putting the board under control. Even though Cho’gall hasn’t really worked out as a card, the new Bloodbloom seems to work quite well as it can give the players the tempo swing with combining it with cards like Doom and Siphon Soul. As it’s quite clear that you’ll be taking higher amounts of damage to your face, the deck has a lot of minions in charge of recovering it like Voodoo Doctor, Mistress of Potions and Earthen Ring Farseer. It has proven to be very useful against midrange decks who don’t have an amazing way of recovering after having their board wiped. The Dirty Rat also made the list and it's dirtier than ever. The card can single-handedly mess up the plans of the new Quest Rogue by getting the card that the rogue is trying to play multiple times out of the hand," (https://www.good-gaming.com/guide/1082).

TLDR; 

-Midrange Counter due to cheap boardwipes.

-Explosive Turns and Tempo with Bloodbloom Combos.

-Decent matchup against Rogue due to the Dirty Rat Tech.

Credits of analysis is to David “Sigma” Bakic, content creator and writer for Good Gaming.