Mulligans
General Mulligans
You mulligan exclusively for this card, only when going second against aggro, you can consider keeping imp gang boss in your opening hand. If you have Keleseth in your opening hand, just look for a good curve. Having a turn one play is crucial, especially against aggro.
Edit: against priest, keep flame imp, against aggro voidwalker
Over 60% Winrate from 13 to 5
Zoo is finally back with kft!!!!
This is a very aggressive build of zoo, featuring more discard synergy then regular versions. It takes advantage of Prince Keleseth, who pushes some of the minions just over the edge (especially Imp Gang Boss, Felhound, Doomguard). The discard cards allow extreme tempo plays, while the drawpower of Malchezaars Imp allows you to search for Prince Keleseth. The Deck can win easily without Prince Keleseth, still you mulligan aggressively for this card. Against aggressive decks, it is sometimes right to keep Imp Gang Boss if you go second. The Felhound is just insane against aggro. Crystalweaver and Imp Gang Boss can win games on their own ( trade Imp Gang Boss, then buff it and the generated Imp). When you start top decking and feel like your opponent has no heal left, its often the right play to eg soulfire into face and tap after it to avoid drawing into felhound/doomguard and discarding one of the cards. The deck is quite strong, only priest is a difficult matchup, you have to kill them fast and hope they dont draw all of their clears. Prince Keleseth is best against Priest, as it pushes Flame Imp, Felhound, Fledgling and Howlfiend out of Shadowword Range.
PS: The easiest Match-up is against Regular zoo, you can often win even if they draw the Prince and you not, as zoo still has no recover mechanics, making the tempo from your discard minions game winning.