Right away, it creates friction by making all nonbasics enter the battlefield tapped, slowing down opponents who stretch their colors
If you follow either of those with a Goyf you can try and end the game while the effects of your discard still resonate hard
Each pack is a gamble, but the potential payoff with rare pulls makes it all worth it
There is support for both sides, like Professor Sadas Vitality [Paradox Rift] that can accelerate Energy to your Ancient Pokemon, and Techno Radar [Paradox Rift] that can search your deck for Future Pokemon
Teysa, Envoy of Ghosts offers a good support card, but its hard to justify a 7-mana commander without a good enters ability
Sword & Shield Battle Styles also saw the Pokmon get its best card from that era, the Victini VMAX