mtg card limit hand Rule question: If i have both of them out what is now my max hand size? I'm confused here

The Eldrazi Unbound Commander Masters Commander Deck set includes 1 ready-to-play Colorless deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 2 special treatment cards, with 1 Traditional Foil Common or Uncommon and 1 nonfoil or Traditional Foil Rare or Mythic Rare), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards 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

Perfect for both Limited play and the sheer fun of opening packs, this Tarkir: Dragonstorm Play Booster Box is your ultimate gateway to discovering what Magic: The Gathering has to offer

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Bigger spells let you generate bigger Elementals poised to attack, so pull out all the stops and go for broke