I didn't even think about diving down this rabbit hole when I built my Jorn, God of Winter deck, but this is a genuinely strong bit of synergy that makes me want to revisit that build and set up ways to pull this off
Note how many lands you have and if your opening hand has enough juice to win a game
Yarus, Roar Of The Old God (also in the main Murders At Karlov Manor set) is the card you want to get in Deadly Disguise as soon as you can
Instead of forcing a race with flyers and using counterspells to cut off any response, white-black embraces the board stall and grinds the opponent out over time, gaining value from its creatures both in life and death
I prefer returning an instant/sorcery over mere card draw as I know what I am getting back
It comes in for just and phases out a Creature, which means Commanders hit by it can't escape to the Command Zone