trap cards yugioh The Most Valuable In The YGO TCG Normal Trap Card | Yu-Gi-Oh!
Description
Im secure enough to admit Ive lost to this combination before

As long as this card is attached to a Pokmon, it provides every type of Energy but provides only 1 Energy at a time

1 Rulebook

One possible reason (the most popular theory) is that ante meant that playing too many cards in your deck would mean risk of a high value loss
