Talk:Tsukikage & Byakuya, "Chaotic Nano Art of Body Duplication!"/@comment-27614071-20160412174441/@comment-25600444-20160412211948

Yup, Double Attack (And Triple for that matter) all work fine on Impact Monsters during the Final Phase.

The only "Once" they have is that you can only call 1 per turn. The rest, think of the Final Phase as the Attack Phase for Impact Monsters.