volt tackle booster box 10x Amazing Packs (s4) Japanese Pokemon S4 Amazing Volt

Upon winning a duel, there will be a little heart meter that goes up, like in dating sims, apparently

1 Common in Edge of Eternities and Alchemy: Edge of Eternities packs and limited packs will upgrade to a Special Guest at a rate of approximately 1:55 A card in Edge of Eternities packs and limited packs will be replaced with a rare Stellar Sights bonus sheet card at a rate of approximately 1:6.7

Arcane Ritual

You can sometimes see this black layer by examining the edge of a card closely without damaging it

That high bar has been broken repeatedly since

Certainly one of the first cards outside of your core needs that you look to