Unrelated questions, Snowman and Pierce

you loose pierce when you release in the air during the small time you're off the ground when you get bumped, because bowman can't shoot mid air. the pierce multiplier is 1.2 for every additional mob. so on the first you hit base damage, on the second base damage * 1.2, on the third base damage * 1.2 * 1.2. or damage * 1.2^(mob count -1)

EDIT: ninja'd