Assassin Arrow Of the Gods

This tattoo arrow melds with the flesh of the attuned and can only be removed by cutting out the flesh.

Take a bonus action to activate the arrow.  The next turn you attack make at maximum one attack roll with the following benefits:

1)  Double your crit range.

2)  If the hit lands calculate damage as if all damage all attacks you would normally make for two rounds landed.  (EX:  If a fighter activated this and the hit landed, they would calculate damage as if both their attacks on turn one hit AND both their attacks on turn two hit.  Any on hit effects would activate for each hit)

This ability resets after a long rest.