The cost to cast Clones is usually well less than the mana value of those creatures
While a player wants to destroy/exile an opponent's Planeswalker and spends resources to do so and their opponent dedicates resources to protecting it, the roles are reversed with Battles, as its controller wants to dedicate resources with attack and damage their permanent, while the opponent must prevent its counters from being reduced to zero in order not to deal with a greater threat
Escape cards like From the Catacombs and Uro, Titan of Nature's Wrath similarly use the graveyard
One of the biggest changes, however, has been the explosion in variants
Pack Composition: Every individual pack guarantees a rare or mythic rare card from the set, two foil basic lands, and a mechanically unique rare card designed specifically for the Jumpstart format
The twin Trees of Perdition and Redemption seem particularly fab in this deck