one piece anime 25th anniversary booster box Extra Booster: Collection [EB-02] This package includes many ways to strengthen leaders from previous sets Booster Box Prices | One

it just allows the card to have creature types without being a creature

The old turn one kill of Dark Ritual Entomb finding this followed with a Shallow Grave or Vengeance and then having five land after the trigger from dealing at least 5 attack damage to face

As opponents draw their second cards each turn, it gains counters and gets card advantage

If you're looking to find any of these cards, rather than buying them outright as singles, then you'll want to pick up some Winterspell boosters ASAP

Myra the Magnificent is a unique option

Vesuvan Duplimancy has an incredible name, because I keep reading it as Vesuvan Diplomacy, which has to be intentional