QOL buff for Kindred

Kindred should be able to gain passive stacks on monsters she attacks, but does not kill. (An ally would have to kill it not an enemy, similar to if not exactly how Devourer stacks on monster assists) This is a buff for adc/top/mid Kindred, who do not bring smite and as such will probably not last hit Baron, and in the case of say Scuttle crabs you can give the gold to your jungler while still getting the stack. Also gets you back to lane faster if you only need to come to river to hit it once and then can proceed back to lane.