Avatar: The Last Airbender - Earthbending Winner: Badgermole CubBadgermole Cub Runner-up: Toph, the First MetalbenderToph, the First Metalbender Out of all the Avatar abilities, this is the one that seems most powerful right out of the gate
The first player (Illumineer!) to gather 20 lore wins the game
Wizards of the Coast, the company that makes Magic, made a legally-binding promise to never reprint these cards, and they tend to be extremely powerful
The pricing is modeled after set boosters, and a bit cheaper if you manage to find boxes in wholesale
Suki is probably my favorite here since her power is equal to the number of creatures you control (and well wind up with a lot of warrior creature tokens)
Then everyone draws a card