Putting an opponent's fully built-up Charizard EX or Venusaur EX back into the deck can disrupt their strategy significantly
I have one myself so Im biased, but still
If the card you're casting as the cascade ability resolves is one of those cards, you may choose to cast it as either of those spells that has a lower mana value than the spell with cascade
The Mewtwo from the Evolutions set had 180, and the Mewtwo s from the Sun & Moon era all either had 180 or 190
The duel disks are much more compact, some as small as wristbands, and the most advanced ones can produce virtual cards for players to use instead of needing real cards
Pair Pete, Bad Guy up with the likes of Alice, Growing Girl or Mulan, Free Spirit and watch the lore come rolling in