I hope he falls on it next time he takes it out.
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Calling it,
Heartsbane will be used to kill the Night's King, not necessarily by Sam, but will be a shot right in the chest, bringing around the dragonglass scene full circle (The magic of the children made this monster but its the magic of men that will end him) Because the showrunners, lacking any source material are writing this crap off of drunk half formed GRRM cliffnotes on the story's conclusion.
AND
Quit being mean to Sam and Gilly, they are adorable.