So scale up you cost as much as you'd like, but you only choose one additional cost
Stroke of Genius is another notable card because instant speed draw effects are invaluable
But, storm commanders are something I'd only want to face in higher-powered games where I know the combos are at least going somewhere instead of stumbling around hoping they hit their win condition
Well, until Commander Legends: Battle for Baldurs Gate
Despite the fact that the first options commanders (Carth and Guff) have the word planeswalker written on them multiple times, I dont think I would actually choose them (for the record, I would build Guff as the control the board, slow tick-up and Carth as the counter shenanigans deck)
Deflecting Swat Current Price (via Card Kingdom): $39.99 Like Fierce Guardianship, Deflecting Swat is so powerful because you cant predict it reliably