So, I'm making an Unchained Monk for a campaign I'm jumping in to at level 5. I'm reading the Ki Pool class feature, and I just can't fully understand the meaning. I've Googled for the answer, and I must just be really dense because I can't find anyone else misunderstanding it.
Ki Pool (Su):
At 3rd level, a monk gains a pool of ki points, supernatural energy he can use to accomplish amazing feats. The number of points in a monk’s ki pool is equal to 1/2 his monk level + his Wisdom modifier. As long as he has at least 1 point in his ki pool, he can make a ki strike.
At 3rd level, ki strike allows his unarmed attacks to be treated as magic weapons for the purpose of overcoming damage reduction.
At 7th level, his unarmed attacks are also treated as cold iron and silver for the purpose of overcoming damage reduction.
At 10th level, his unarmed attacks are also treated as lawful weapons for the purpose of overcoming damage reduction.
At 16th level, his unarmed attacks are treated as adamantine weapons for the purpose of overcoming damage reduction and bypassing hardness.
By spending 1 point from his ki pool as a swift action, a monk can make one additional unarmed strike at his highest attack bonus when making a flurry of blows attack. This bonus attack stacks with all bonus attacks gained from flurry of blows, as well as those from haste and similar effects. A monk gains additional powers that consume points from his ki pool as he gains levels.
I am confused because the first one specifies "Ki Strike", while the others do not. Now, is this implying that your Unarmed Strikes are only treated differently for overcoming DR when you use this extra attack by spending 1 point? Or is it implying that all Unarmed attacks are treated with these special properties? Is a Ki Strike just any attack you make while you still have a Ki Point, or is it that one specific type of attack?