Previous sets have introduced new mechanics, such as Locations in Into The Inklands
This means trainers can open as many packs as they want and collect as many cards as they want
8 The Knight of Dragon Magic Racks up a Lot of Damage Battles of Legend: Monstrous Revenge Jun
Furthermore, if their trainer knows that their Beheeyem BREAK is about to get knocked out, they can send all the energy attached to them to benched pokemon to prepare for upcoming tactics while also slamming the foe with 100 damage
Esper Midrange is losing the most cards, with one of the best decks in Standard no longer functional in its build
This tribal deck, built around Knights, brought back the Eminence ability, meaning you don't even need to play your Commander to start generating value from him