Arrow
draws an arrow connected with a line
Arrow[pts_List]
Parameters
Thickness or AbsoluteThickness
controls the width of a stroke
RGBColor
controls color of a stroke
Example
Simple broken line with an arrow on the end
Graphics3D[Arrow[{{1, 1, -1}, {2, 2, 0}, {3, 3, -1}, {4, 4, 0}}]]
Dynamic updates
It does support updates. Use Offload
warning
Changing the length of an array of points is not supported!