User blog comment:GeneralOwnage55/What is your idea for a new plasmid?/@comment-1858559-20100821185104

BD & LS Summon: Fires a brown globule on the ground, and a Big Daddy and a Little Sister will come.

This is helpful if you are low on ADAM. In order for u to get the ADAM from Lil' Sis, you'll have too kill the BD first.