Jumpstart boosters usually sell for around $5-$7 and contain 20 cards: one rare from the theme (sometimes two), some uncommons, commons, and 8-9 basic lands
The hybrid uncommons communicate some of the differences at play: Fireborn Knight rewards power-pumping, Elite Headhunter plays more of a sacrifice-attrition strategy (which ostensibly is WBs shtick), and Resolute Rider is a potent, hard-to-kill threat
He can also reliably pitch your hand into your graveyard, which can make a good setup for graveyard strategies - whether you're trying to get an Underworld Breach / Lion's Eye Diamond loop going for a combo, or just want to reanimate something huge
Borderless Fire Crystal (65k, $9/$12) Tokens are another theme that Wizards keeps going back to, a popular and powerful thing to focus on
Both gain life, so can run them together normally or in life gain decks too