This is worth more than five and a half pounds of gold.

Is that a good card?

It's only for collection now. It's banned for normal game play. It costs 0 mana to cast and it gives you 3 mana of any color in return. ITS BROKEN

A similar card, which is still allowed today, is the Birds Of Paradise which costs 1 forest mana to cast and gives you a mana of any color in return.