This would basically create a Pierce Feat, allowing an archer to hit multiple targets with one arrow if they are in a line. This is more limiting than the Cleave feat since enemies are not standing in a nice line most of the time. To balance this I thought instead of just allowing the extra attack if the first creature is reduced to 0 hit points, but also if the attack on the first creature is a critical result. You can then have Greater Pierce to follow this one. I haven't looked at pre-reqs but I can think they'd at least need point-blank shot and possibly precise shot.
Any feedback on this idea?
Any feedback on this idea?