twitch mtg card | Worldwake or discard a card to draw a card.) Twitch - Magic the Gathering

Karrthus is a decent example of a high-powered legend that immediately pressures life totals, but there are cheaper examples like Maarika, Brutal GladiatorMaarika, Brutal Gladiator, Kresh the BloodbraidedKresh the Bloodbraided (who starts small but can scale absurdly in the right deck), and Coram, the Undertaker (who is on paper a little fiddly but is easy enough in the format to make gigantic)

Card draw is pretty lovely in these kinds of lists but it is usually too expensive and slow to include

Urza's Saga The most value from a single land card Urza's Saga is a one-card value engine for any deck that cares about artifacts

So yeah, I understand why Atraxa, Praetors' Voice is the defacto Superfriends commander for most players

Rakdos Charm is ok, you run 4 Scoozes in the MB so you're already decent against graveyard decks