Thread:FutureKnightX/@comment-28271406-20160422113502/@comment-11372432-20160422125145

He is correct. The main two Jackknifes (Star Guardian, Jackknife and Star Dragoner, Jackknife) can grab an Arms from drop or top 3, respectively, regardless of the size of the Arms. Also, Star Dragoner, Luminous Blue and Star Jack Repair are staples and they can grab from drop while ignoring Arms size, as well.

Though, if you're going dedicated Jackknife and want the high critical, then I'd just go with Igniter, personally. Can crossnize from field and you want room for other Arms.