Blade Oni

Ideal turn progression:
T1 Akko, Inspired Artist
T2 Gold-Plated Revolver on Akko, hit for 4, get a 1/2 weapon on him. Do something cool with the rest of your power
T3 Akko ultimates, and your opponent concedes (they may not concede)

Jishu, the Burning Brush is great, and gets Bladesmash, amazing as it already is, cost 1 with high consistency.

This deck reloads nicely after a sweeper when Chizue, Silver Hilt is on board, and gets ridiculous if not stopped for a couple of turns.