Embodiment of Might

Enchant hand
Enchanted hand is a 1/1 creature with trample and reach.
Enchanted hand gets +X/+X, where X is the number of cards in it.
Whenever enchanted library attacks, double it's power and toughness until end of turn, then draw cards equal to its power.
If enchanted hand would leave the battlefield, instead destroy this enchantment.

An unstoppable force born from the unending struggle for power.