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)