Answer:
My first is in wield, sever bones and marrow. My second is in blade, forged in cold steel. My third is an arbalest, and also in arrows. My fourth is in power, plunged through a shield. My fifth is in honor, and also in vows. My last will put an end to it all.
I am a box that holds keys without locks, yet they can unlock your soul.
When the horse strokes the cat, the wood begins to sing.
What has four legs during the day; and six or eight during the night?
Give it food and it will live, give it water and it will die.
I am your mother's brother's only brother in law. Who am I?