Board Thread:Fun and Games/@comment-27996636-20170601091117/@comment-32736807-20170701174432

LSSJ is a form that is similar to a  Third Graded Super Saiyan.. (ex. Super Vegeta, Super Trunks, & Super Goku) that gives the strength of a SSJ2, The LSSJ Transformation also keeps the normal speed as well. But Broly's Ki grows with his anger due to his saiyan blood, and in LSSJ form is an enormous amount of Ki at the start which is most likely the reason he can't control his rage when triggered by overwhelming thoughts of Kakarot as a child crying non-stop. His Ki never stops growing.. this is why almost every movie when Broly is killed with an intensive blow you see a large green explosion of legendary Ki which overtakes his blood. His power basically makes him vulnerable every time in mid-fight. He's basically a Power/Glass-House.