At the time, they were around six or seven pounds to buy, which was great value for someone who didnt have a huge amount of money growing up, and would have been purchased in the year 2000
Because of all this, the card was known by many to really exist, but with the lack of official confirmation and no copies to point to, an air of mystery and desirability grew over the card
Avarice Amulet $0.50 Avarice Amulet does nothing
So, the companions are legendary creatures who begin outside your starting deck and have great influence over the rest of your deck
All manner of Pokmon, as well as Supporter and Item cards (and even one Energy card), have been banned at some point from certain gameplay formats for a variety of reasons
I don't think such a deck exists, but it might one day