create implication yari -> spear

Link to implication

EDIT: The tag implication yari -> spear (forum #144046) has been approved by @NWF_Renim.

The tag implication yari -> spear (forum #144046) has been approved by @NWF_Renim.

This implication was proposed before, and a possible objection to it was posted at forum #116667. Strange that it gets approved this time around with zero discussion whatsoever.