You can tap it with two mana to sac a token for a card to make them all Clues, or three mana to pay a life for making a free 1/1 Fish token or four mana to make Treasures for ramping
For example, at Portland Regionals, it was common for players to play copies of Reset Stamp
Rayquaza At one end of scale, we have the new Rayquaza
The price for an HP lotus had dropped down to around $6,000 on TCGPlayer at the time, so I started looking a stores with HP lotuses for sale, and what their buylists were, so I could try and cover at least 60% of the cost with trade in
Perhaps it's because the marketing for the product was mixed - as evidenced by the fact that head designer Mark Rosewater had to clarify a few issues after seeing the backlash
Its the same account that you need if you enter an official tournament for the physical card game, so you may have already signed up