Unarmed Strike

While centered (unarmored, unencumbered, and wielding monk weapons), your fists and feet are lethal weapons.

This feat is taken multiple times if you progress as a monk, leading to unarmed damage of
 * 1d6 - 1 time
 * 1d8 - 2 times
 * 1d10 - 3 times
 * 2d6 - 4 times
 * 2d8 - 5 times
 * 2d10 - 6 times
 * (also including the monk past life feat - 2d12)