Ninja

Play 10 Shivs in one turn. Silent only. Shivs are the 0-cost daggers generated by cards like Blade Dance (adds 3, or 4 upgraded) and Cloak and Dagger; Storm of Steel discards your hand and gives a Shiv per card discarded. Play a couple of Shiv-generators, then throw all ten 0-cost Shivs the same turn (they cost nothing, so you can spam them). Accuracy makes the resulting turn silly. Comes naturally in a Shiv deck.