The fundamental weakness of the Paris Mulligan was that players had no control over which cards they lost
In fact, you might even want it to die so that you can bring it back and do it again
Cards like Eon Hub that skip a players upkeep also prevent cumulative upkeep from triggering
Professor's Research has been a staple since the Sword & Shield era, and has been able to remain as one of the best Supporters despite the aggressive power creep between generations
Soul Sear / Rebel Salvo 3 Technically Rebel Salvo is better but I cannot see it being that much less than 2.9 mana on average in cubes
Each Commander Masters Commander Deck set includes 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack, 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the card's border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card