If, for instance, a "Battlefield Only" unit is in play, can that unit be shifted to other zones via card effects? To illustrate, here is an example: Veteran Sellsword ("Battlefield Only") is in my opponent's battlefield. At the end of my opponent's turn, Veteran Sellsword shifts to my battlefield. At the beginning of my kingdom phase, I use my Temple of Shallya to shift the Veteran Sellsword to my quest zone. The sellsword now provides both my opponent and myself an extra draw every turn. Is this legal? What if I use Forced March to shift the sellsword instead?
RM