pokemon card collage Blastoise (Pokemon Collage) by PlusleThePokemon04 on DeviantArt Pokémon Card Collage - Framed

You can play out vampires one by one and get an extra +1/+1 on board for each one you cast, or you could play token-makers like Charismatic Conqueror and Bloodline Keeper // Lord of Lineage to spread that vampire lord effect across more bodies with a single card from your hand

Leader cards can use an effect while outside of the main battle, before later being deployed - flipping the card over to reveal new abilities - by paying their cost to join an arena as a unit card

At the time, Pokemon was already growing in popularity in Japan and overseas

One of its choices makes an opponent discard two cards, on top of removal and card draw