Barrage vs Energy Orb vs Energy Drain

it is said that the range increases as it goes from 1st to 2nd monster.Orb IS better damage-wise, but as you said not usefulness-wise because of invincibility frames DS has

One of the things that makes DS so great is its range. That, and using a CSB -> DS combo works out far easier and better than a CSB -> orb combo. There's no way Energy Orb is going to surpass DS.

fixed