Answer:
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
My children are near and far. No matter that I know where they are. The gift I give them make their day. But if I were gone they would wander away.
Don't do this in the shallow end.
I can be short and sometimes hot. When displayed, I rarely impress.
If you can spot one of these eastern warriors, it means they're not doing their job right.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?