If you add two loyalty, you can discard up to two cards then draw that many cards
The famous Black Lotus Magic: The Gathering card continues its streak as the most expensive Magic cards of all time, selling in a recent auction for $540,000
Mist Dancer comes back from the grave with a vengeance, granting all your flying Merfolk an extra three power for the turn, and perhaps letting you close out the game
The video games structure is similar to the mainline series of Pokmon titles, as you go from club to club defeating a Club Master in each until you reach the four Grand Masters
Theres a lot of established heuristics on this subject, and a few points I can toss in to help you construct an optimal mana base for Standard, Modern, Pioneer, or whatever MTG format you prefer
Finally, populate is your best friend