This mechanic is highly reminiscent of for Mirrodin!, which had the token + auto-equip functionality (those tokens were 2/2 red Rebels though)
Ramp [12 + 3 Lands] Leveraging signets and a Treasure-heavy ramp package, having tonnes of mana available to recast Marchesa is a piece of cake
Pick Your Colors The main color identities that self-mill in Commander will be a two- or three-color combination of blue, black and green
Bloodghast Bloodghast is an interesting Standard reprint
Etali, Primal Storm Etali, Primal Storm is a staple in red-inclusive Commander decks for good reason
Suddenly [card]Solemn Simulacrum can enter the battlefield with flash, ramp you twice, block, and draw two cards