mtg set booster box vs draft booster box

mtg set booster box vs draft booster box Hello guys, I'm starting collecting again after so many years, but I don't get the difference between those 2 packs, why one has 12 cards and the other 15? Aren't them both foil extended art rare/mythic rare MTG Zendikar Rising - Set

Name: mtg set booster box vs draft booster box Hello guys, I'm starting collecting again after so many years, but I don't get the difference between those 2 packs, why one has 12 cards and the other 15? Aren't them both foil extended art rare/mythic rare MTG Zendikar Rising - Set
Brand: excellencyproduct.com
SKU: 16470402305
Price: 26.35 USD
Availability: InStock
Rating: 4.2439 (23 reviews)

SKU: 16470402305

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Lyrics Chillin' out with the crew in the school yard Findin' trouble, never lookin' too hard Well back at class, they never taught us this Some things you gotta learn, hit or miss [Pre-Chorus] Tough times, hard climbs We'll take 'em on together Right now, let's go

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