It reads, At the beginning of each end step, enchanted player mills X cards, where X is the number of cards put into their graveyard from anywhere this turn. It basically also doubles your mill, and while it only targets one player, its great if youre trying to prove youre not a threat
That base 2/2 power and toughness can still be modified by equipment, auras, +1/+1 counters and other buffs, which means your opponents will often have one or two bears still punching above their weight
If you pay the kicker cost, you get the additional effect printed on the card
Goblins, Insects, and more will have their own teams competing for the ultimate prize
For instance, Patchwork Beastie will be able to attack, Impossible Inferno will exile cards off the top of your library, and Scuttletide will give Crabs you control +1/+1