The two M Charizard-EX cards dominate the community conversation: #13 (Full Art) and #101/108 (the holo variant) are the cards every Evolutions collector wants, and they're what drives grading submissions for this set
Players can build decks with physical cards, though that is becoming a challenge as stores struggle to keep them in stock
Mega Evolution (and again, I stress my sample size is non-scientific) blew this out of the water for me
Each deck set contains 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), 10 Planechase cards, 1 six-sided planar die, a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil special treatment card of rarity Rare or higher and 1 Traditional Foil special treatment Common or Uncommon card), 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.