Posting since I see no decks on EWC built around this combo. This must be remedied!
Combo =
Quicksilver Gateway +
Overmax Wand + Card Drawing Unit
This does 3 * (13 - handsize) to the opponent, since once your hand is full, Gateway stops working, but you always get 1 proc of wand from the first transform.
The initial transform to get the combo rolling can be (A) get to 6 max power to transform Sealed Writ, (B) transform hand using plunder, (C) connect with a card drawing unit.
Card drawing units are Plunk, Adept, Torgov, Evelina, and any unit wielding Spellshaper.
Remember to go to the market before playing Quicksilver Gateway. You are aiming for turn 6 combo usually using (A), but turn 5 is possible with method (C) and an unwary opponent.
You mileage may vary - more or less for memes only. There's probably room for improvement in supporting card choices.