Talk:Thunder Knights, Halberd Dragon/@comment-5230496-20140325122203/@comment-24297134-20140325122556

2 copies are enough since your size 2 lineup would be mostly composed of Jackknife and his various forms. You can always run 4 if you like but if you're sticking with 10-12 size 2 monsters for a Jackknife deck and would like to run more than 2 copies of his variations then you should only run this at 2.