Talk:Tsukikage & Byakuya, "Chaotic Nano Art of Body Duplication!"/@comment-27614071-20160412174441/@comment-26290163-20160413071705

The Flow is basically copied from the Attack Phase, you can see from the Detailed rules (except there is no [Move]). It's updated on the regular site, just not the English yet, but I confirmed it with them.

You are only allowed to call one per turn through a normal call in the Final Phase, however, there is no limit to how many Impact Monsters you can call or in which Phase as long as you use the ability or effect of another card to do so. So, if this was a Size 2 Skull, you'd be able to call it during your Main Phase using Odd Ritual, or my favorite example is Speed Summon. You'd be able to call any Magic World Impact Monster during any of the 4 Phases on your opponents turn.

Also, none of those calls would count against your 1 regular call. Once you use your regular call, if the call is nullified, it goes to the drop and doesn't count. However, if it enters the field and is returned to your hand, it does count as it has entered the field.