Do you remember the Classic card, Mana Addict? It almost never sees play because it's so easy to kill off and a bit of a challenge to get any value. However, after a recommendation from one of our viewers, we paired her with Master of Disguise and Umbral Skulker in a Galakrond, the Nightmare Rogue deck, with some pretty fun results!

The basic idea of the deck is to invoke at least twice so the Umbral Skulkers are active, and drop Mana Addict and use Master of Disguise on her during the setup turn. If you're facing an opponent likely to have AoE, Beaming Sidekick can help her survive against some AoE. The following turn, you drop Umbral Skulker, play the coins, and Shadowstep her for even more coins. If you have 2 Umbral Skulkers and 2 Shadowsteps in hand, it's possible to turn her into a 29 attack minion! And, if you have a [Hearthstone Card (Praise Galakrond) Not Found] or Sap in hand too, it's possible to do over 30 damage with her.

Even if you can't quite finish off the opponent with Mana Addict alone, the stealth and Galakrond package can often generate the last bit of value/damage necessary to close out the game. The combo turn can be quite a challenge to pull off, so give yourself plenty of time, but it's a lot of fun when you do it! We've got a gameplay video with this deck and a couple games if you'd like to see how it plays at https://youtu.be/DIYAiiN_VSQ. Have fun experimenting!